**Description :** Which of the following statements concerning AC circuits is correct? A. The power factor of a resistive circuit is always zero. B. True power in an inductive circuit always equals apparent power. ... . D. Total opposition to the flow of alternating current depends upon the amount of reactive power.

**Last Answer :** Answer: C

**Description :** The basic control action of a magnetic amplifier depends upon _____________. A. variations in the load capacitance B. changes in inductance C. type of core material D. construction of the core

**Last Answer :** Answer: B

**Description :** Over lap Angle depends on_________ a) Load inductance b) Loa capacitance c) Source inductance d) Source capacitance

**Last Answer :** Ans: Source inductance

**Description :** The mutual inductance of the coil depends upon: a. density of the coil b. stiffness of coil c. material of coil d. geometry of the coil

**Last Answer :** d. geometry of the coil

**Description :** Three factors responsible for the change in voltage as load is applied to an AC generator are: 1) the drop in resistance in the armature circuit, 2) the change in flux, and 3) the ____________. A. armature winding speed B. inductance load drop C. coil pitch factor D. armature reactance voltage drop

**Last Answer :** Answer: D

**Description :** . What are two of the three physical factors that determine the values of capacitance and inductance of a transmission line?

**Last Answer :** (1) Type of line used, (2) dielectric in the line, and (3) length of line.

**Description :** Write any two factors on which earth resistance depends.

**Last Answer :** Factors on which earth resistance depends: (1) The shape and material used for the electrode (2) Depth of the electrode in the ground. (3) The specific resistance of the soil around the electrode (4) Moisture content in the soil. (5) Nature of soil

**Description :** Write the factors on which capacity of parallel plate condenser depends.

**Last Answer :** Factors on which capacity of parallel plate condenser depends : A = Area of each plate d= Distance between two plate k = Dielectric constant of the medium ε0 = Permittivity of free space

**Description :** effect of inductance and capacitance on performance of transmission line.

**Last Answer :** Following are the effect on performance of transmission line: 1. Due to inductance (L) voltage drop in transmission line produces. 2. Capacitor (C) draws charging current ... , transmission line efficiency, voltage regulation & also power factor of transmission line gets affected.

**Description :** What is inductance?

**Last Answer :** Inductance is the property of Material by which it opposes the any change of magnitude or direction of electric current passing through the conductor. The inductance is denoted by L. The unit of inductance is Henry (H).

**Description :** Self induced voltage across an inductance

**Last Answer :** Self induced voltage across an inductance

**Description :** State the effects of errors in dynamometer type wattmeter due to i) pc- inductance ii) pc- capacitance iii) mutual inductance iv) Connection.

**Last Answer :** Errors in wattmeter: i) pc - inductance: Pressure coil inductance causes wattmeter to read more power than actual . ii) pc-capacitance: The wattmeter reads less power. iii) ... iv) Connection: In uncompensated wattmeter , the reading of wattmeter includes the powerloss in coils.

**Description :** Describe with working of LCR meter for measurement of inductance.

**Last Answer :** working of LCR:- A LCR meter (Inductance (L), Capacitance (C), and Resistance (R) test equipment used to measure the inductance, capacitance and, resistance of a component. It works on the ... in parallel (as would be encountered in measuring a capacitor with a leaky dielectric) [Q setting ]

**Description :** Define :i) Self inductance ii) Coefficient of self induction

**Last Answer :** i) Self-inductance: It is the property by virtue of which a coil opposes change in current flowing through it by inducing an emf in it such that its effect is to circulate current (induced current) that produces a magnetic field ... N = di/dt N = Φ/I It is expressed in henry.

**Description :** A coil of 500 turns is linked with a flux of 25 mwb, when carries a current of 12.5A. Calculate the value of self-inductance.

**Last Answer :** Ans: Self-Inductance: L = NΦ /I = 500 × 25 × 10-3 / 12.5 = 1 H

**Description :** In practice, a current source inverter consists of an AC/ DC converter with a large inductance ‘L’ in the output. This inductance maintains a ……… …………through the switching devices over short interval of time. A) constant current B) constant voltage C) constant power D) none of the (A), (B), (C)

**Last Answer :** In practice, a current source inverter consists of an AC/ DC converter with a large inductance ‘L’ in the output. This inductance maintains a constant current through the switching devices over short interval of time.

**Description :** An iron cored inductance coil can be modelled, over a normal operating range of networks ,as A) non-Linear bilateral element B) linear bilateral element C) linear time varying element D) non-linear time invariant element

**Last Answer :** An iron cored inductance coil can be modelled, over a normal operating range of networks ,as linear bilateral element

**Description :** These self inductance of a circuit is defined as twice the work done against the induced e.m.f. on establishing unit current in the coil. If the current to be established in the coil is doubled, the work done ... induced e.m.f. will be 1. Doubled 2. Halved 3. four times 4. Quarter times

**Last Answer :** These self inductance of a circuit is defined as twice the work done against the induced e.m.f. on establishing unit current in the coil. If the current to be established in the coil is doubled, the work done against the induced e.m.f. will be four times

**Description :** lt the length, number of turns and area of a coil are doubled, the inductance of the coil

**Last Answer :** lt the length, number of turns and area of a coil are doubled, the inductance of the coil is quadrupled

**Description :** A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum when the supply frequency is 1 kHz. The ... (A) 40, 400 Hz (B) 10, 100 Hz (C) 20, 50 Hz (D) 50, 20 Hz

**Last Answer :** A coil of inductance 240 mH and resistance 75 Ohm is connected in parallel with a capacitor across a 30 V, variable frequency supply. The current drawn by the circuit is found to be minimum ... supply frequency is 1 kHz. The approximate values of Q-factor and bandwidth are, respectively 20, 50 Hz

**Description :** A network consists of several inductances connected in parallel. The equivalent inductance of the network is given by (A) the sum of the individual inductances. (B) the reciprocal of the ... of individual inductances. (D) the reciprocal of the sum of reciprocals of individual inductances.

**Last Answer :** A network consists of several inductances connected in parallel. The equivalent inductance of the network is given by the reciprocal of the sum of reciprocals of individual inductances.

**Description :** What is the value of Inductance of a coil that induces 20 V when the current through the coil changes from 12 to 20 A in 2 seconds? A. 2 H B. 3 H C. 4 H D. 5 H

**Last Answer :** 5 H is the value of Inductance of a coil that induces 20 V when the current through the coil changes from 12 to 20 A in 2 seconds.

**Last Answer :** An undesirable side effect of motional inductance of large conduction specimens is eddy currents.

**Description :** A series RLC circuit has a resistance of 50 , inductance of 0.4H and a capacitor of 10µF. The circuit is connected across a 100V supply. The resonance frequency and the current through the resistance are

**Last Answer :** A series RLC circuit has a resistance of 50 , inductance of 0.4H and a capacitor of 10µF. The circuit is connected across a 100V supply. The resonance frequency and the current through the resistance are 500 rad/s and 2A.

**Description :** Two similar coils have self inductance of 1 mH each. Coefficient of coupling is 0.5. The mutual inductance M is

**Last Answer :** Two similar coils have self inductance of 1 mH each. Coefficient of coupling is 0.5. The mutual inductance M is 0.5 mH.

**Last Answer :** Inductance coils are basically designed for High Q.

**Description :** The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is_______Vs.

**Last Answer :** The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is 20 Vs

**Description :** When both the inductance and resistance of a coil are doubled the value of?

**Last Answer :** When both the inductance and resistance of a coil are doubled the value of time constant remains unchanged.

**Description :** The inductance of a coil can be increased by?

**Last Answer :** The inductance of a coil can be increased by choosing core material having high relative permeability.

**Description :** If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be?

**Last Answer :** 0.1s

**Description :** Inductance of coil?

**Last Answer :** Inductance of coil increases with the increase in supply frequency.

**Description :** Inductance of a coil Varies?

**Last Answer :** Inductance of a coil Varies as directly as the cross-sectional area of magnetic core and inversely as the length of the iron path.

**Description :** Inductance affects the direct current flow?

**Last Answer :** Inductance affects the direct current flow at the time of turning on and off.

**Description :** In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value?

**Last Answer :** In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value will increase the selectivity of the circuit.

**Last Answer :** Resistance: This could be defined as the opposition or retarding force to the flow of current in a circuit. It is measured in Ohms. Capacitance: The ability of a system of electrical conductors and insulators ... due to a rate of change of current in the circuit or coil. It's unit is Henry.

**Description :** What is the reciprocal of inductance?

**Last Answer :** This term is not exist

**Last Answer :** Unit of inductance is Henry denoted by capital H .

**Last Answer :** The size of the induced electromotive force is proportional to the rate of change of theelectric current. ... The self-inductance of a coil, or simply its inductance, may thus be thought of as electromagnetic inertia, a property that opposes changes both in currents and in magnetic fields.

**Last Answer :** The voltage across an inductor is directly proportional to inductance (V=L*di/dt*I).And the voltage is Also directly proportion to frequency.

**Description :** If the size of the elements is small, the final solution is expected to be accurate. a.more b.less c.depends on other factors d.can't say

**Last Answer :** a.more

**Description :** Mention the factors on which the land-use pattern of India depends on. -Geography

**Last Answer :** There are two main factors on which the land use pattern of India depends upon. The factors are- Physical factors and Human factors : 1. Physical factors: The physical factors ... factors: The human factors comprise population density, culture, and traditions, technological capability, etc.

**Description :** Name some factors on which farming practice in India depends. -Geography

**Last Answer :** Due to a long growing season, various types of soils, climate, and large agricultural area, India is an important producer of many crops. The factors on which farming practice in India ... b) Socio-economic factors which include demand for food/cash crops, technology, labour and organization.

**Description :** Name any two factors on which resource development depends. -SST 10th

**Last Answer :** (i) Technology (ii) Quality of human resources.

**Description :** Economic development of a country depends on which factors and what is the role of democracy in it? -SST 10th

**Last Answer :** In matters of economic development, not all the democracies get developed because of various factors like population, lack of basic infrastructure, etc. If you consider all democracies and all dictatorships ... income is increasing. People at the bottom of society have very little to depend on.

**Description :** Explain the factors on which the quality of life depends. -SST 10th

**Last Answer :** The quality of life depends upon the following factors: (i) Money and material things. (ii) Presence of family members, friends and relatives. (iii) Good working atmosphere at the office. (iv) An ... learn. (v) A position of self respect in the family. (vi) A safe and secure environment.

**Description :** State the factors upon which the rate of Soil erosion depends. -SST 10th

**Last Answer :** The rate of Soil erosion depends upon: (i) Character of the slope of land. (ii) The density of vegetation. (iii) Rainfall—Heavy or Light.

**Description :** 13. A ray of light, incident obliquely on a face of a rectangular glass slab placed in air, emerges from the opposite face parallel to the incident ray. State two factors on which the lateral displacement of the emergent ray depends. [Foreign] -Chemistry-10

**Last Answer :** Lateral displacement depends on the: angle of incidence, thickness of slab, and refractive index of the material. (any two)

**Description :** State the factors on which acceleration due to gravity depends. -Science

**Last Answer :** The acceleration due to gravity depends upon the radius of the earth,mass of the earth and on a constant having unit Nm^2/kg^2.

**Description :** Why and when does a current carrying conductor kept in a magnetic field experience force? List the factors on which direction of this force depends? -Science

**Last Answer :** The drifting of free electrons of a conductor in a definite direction causes the current to flow through it. When such conductor is placed in a uniform magnetic field, each drifted electron of a ... depends on (i) direction of current through the conductor, and (ii) direction of magnetic field.