Description : In the arrangement shown, the magnitude of each resistance is `1Omega`. The equivalent resistance between O and A is given by
Last Answer : In the arrangement shown, the magnitude of each resistance is `1Omega`. The equivalent resistance between O and A is ... )/(3)Omega` D. `(5)/(6)Omega`
Description : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ammeter and voltmeter are
Last Answer : In the circuit shown in figure ammeter and voltmeter are ideal. If `E=4 V,R=9Omega` and `r=1Omega` then readings of ... V C. 3 A, 4 V D. 4 A, 4 V
Description : The temperature coefficent of resistance of a wire is 0.00125 per `.^(@)C`, At 300 K, its resistance is `1Omega`. At what temperature will its resista
Last Answer : The temperature coefficent of resistance of a wire is 0.00125 per `.^(@)C`, At 300 K, ... At what temperature will its resistance become `2 Omega` ?
Description : A circuit consists of three bateries of emf `E_(1) = 1V, E_(2)=2V` and `E_(3)=3V` and internal resistance `1Omega, 2Omega` and `1Omega` respectively w
Last Answer : A circuit consists of three bateries of emf `E_(1) = 1V, E_(2)=2V` and `E_(3)=3V` and internal resistance `1Omega, ... ` B. `2.0V` C. `2.2V` D. `3.0V`
Description : What is the equivalent resistance of a network having 5 resistors of each 10ohm connected in parallel? (A) 10 Ohms (B) 50 Ohms (C) 500 Ohms (D) 2 Ohms
Last Answer : D) 2 ohms Solution: 1/Rt = (1/R)(n) 1/Rt = (1/10) (5) 1/Rt = 5/10 Rt = 2 ohms
Description : Compute the equivalent resistance of the network shown in A and B? -Technology
Last Answer : 1 is correct
Description : The equivalent resistance resistance between A and B of network shown in figure is
Last Answer : The equivalent resistance resistance between A and B of network shown in figure is A. `(3R)/(4)` B. `(4R)/(3)` C. 6 R D. 2 R
Description : In the network of resistors shown in the adjoining figure, the equivalent resistance between A and B is
Last Answer : In the network of resistors shown in the adjoining figure, the equivalent resistance between A and B is A. 54 ... `Omega` C. 36 `Omega` D. 9 `Omega`
Description : In the network shown, the equivalent resistance between A and B is
Last Answer : In the network shown, the equivalent resistance between A and B is A. `(4)/(3)Omega` B. `(3)/(4)Omega` C. `(24)/(17)Omega` D. `(17)/(24)Omega`
Description : Find the Norton equivalent resistance for the network shown in Fig No. 2
Last Answer : Solution: To find Norton’s equivalent resistance removing voltage source and current source. Voltage source is replaced by short circuit and current source is replaced by open circuit so, we get circuit as
Description : Why the input resistance of an ideal OPAMP is infinite and output resistance is zero? secondly, how can we measure these resistances(input and output) in case of an ideal OPAMPand Real OP-AMP in the following conditions when 1- load is not connected. 2- load is connected.
Last Answer : Ans- Ideal OP-AMP is a power ful concept. If one goes through the history of amplifying devices it becomes clear that less it loads the previous stage better the output signal. ie ... . Can refer application notes by device manufacturer available in internet for more precise and practical solutions.
Description : Find the equivalent resistance of the circuit shown in Fig.4.60 between the points A and B. Each resistor has a resistance r.
Last Answer : Find the equivalent resistance of the circuit shown in Fig.4.60 between the points A and B. Each resistor has a resistance r.
Description : A `5 Omega` resistor is connected in series with a parallel combination of n resistors of `6 Omega` each. The equivalent resistance is `7 Omega`. Find
Last Answer : A `5 Omega` resistor is connected in series with a parallel combination of n resistors of `6 Omega ... The equivalent resistance is `7 Omega`. Find n.
Description : Four equal resistors are connected in parallel, each resistor has an ohmic value of 100 ohms, what is the equivalent resistance?
Last Answer : 25 ohms
Description : N resistors of each of resistance R when connected in series offer an equivalent resistance of 50 ohm and when reconnected in parallel the effective resistance is 2 ohm the value of R is
Description : A battery of e.m.f. `10 V` is connected to resistance as shown in figure. The potential difference `V_(A) - V_(B)` between the point `A` and `B` is
Last Answer : A battery of e.m.f. `10 V` is connected to resistance as shown in figure. The potential difference `V_(A) - V_(B) ... -2V` B. 2V C. 5V D. `(20)/(11)V`
Description : Six resistance each of value `r=5 Omega` are connected between points A, B and C as shown in figure. If `R_(1), R_(2)` and `R_(3)` are the net resista
Last Answer : Six resistance each of value `r=5 Omega` are connected between points A, B and C as shown in figure. If `R_(1), R_(2) ... 1:2:3` C. `5:4:3` D. `4:3:2`
Description : Magnetic field produced at the point O due to current flowing in an infinite wire shaped as shown in the figure is
Last Answer : Magnetic field produced at the point O due to current flowing in an infinite wire shaped as shown in the figure is ... (0)I)/(4R)+(mu_(0)I)/(4piR)`
Description : If the capacitors are connected in parallel, then the potential difference across each capacitor is A. same B. different C. zero D. infinite
Last Answer : same
Description : If each of the resistance in the network in figure `R`, the equivalent resistance between terminals `A` and `B` is
Last Answer : If each of the resistance in the network in figure `R`, the equivalent resistance between terminals `A` and `B` is A. R B. 5R C. 3R D. 6R
Description : If your multimeter gives a reading in ohms when testing each end of each conductor of a three-conductor cable, this indicates ______________. A. continuity of the conductor B. an infinite resistance C. the presence of a partial ground D. that the conductor is not short circuited
Last Answer : Answer: A
Description : With both ends of a three conductor cable disconnected and arranged without the conductors touching each other, an ohmmeter reading of 'zero' ohms between the ends of one conductor would indicate _____________. A. continuity B. a partial ground C. the resistance is infinite D. a short circuit
Description : Norton’s theorem states that a complex network connected to a load can be replaced with an equivalent impedance (A) in series with a current source (B) in parallel with a voltage source (C) in series with a voltage source (D) in parallel with a current source
Last Answer : in parallel qith current source
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 : Find the equivalent resistance of the networks shown in Fig. 4.51 between the points A and B.
Last Answer : Find the equivalent resistance of the networks shown in Fig. 4.51 between the points A and B.
Description : For the circuit shown in figure given below, the equivalent resistance points A and B is
Last Answer : For the circuit shown in figure given below, the equivalent resistance points A and B is A. `10Omega` B. `5 Omega` C. `(10)/(3)Omega` D. `2Omega`
Description : What is the total resistance of the circuit shown in figure 3- 59? (Hint: Redraw the circuit to simplify and then use equivalent resistances to compute for RT.)
Last Answer : 4Ω
Description : The equivalent resistance of two resistor connected in series is `6 Omega` and their equivalent resistance is `(4)/(3)Omega`. What are the values of r
Last Answer : The equivalent resistance of two resistor connected in series is `6 Omega` and their equivalent resistance is `(4 ... , 2 Omega` D. `6 Omega, 2 Omega`
Description : A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be – (1) nR (2) R/n (3) n/R (4) R/n²
Last Answer : (4) R/n² Explanation: Since R is directly proportional to length of the wire, when wire is cut into equal parts, then Resistance of each part = R/n
Description : A receiver connected to an antenna whose resistance is 50 Ω has an equivalent noise resistance of 30Ω. Calculate its equivalent noise temperature if the noise figure is equal to 1.6. A. 17.4 K B. 174K C. 1.74K D. 17K
Last Answer : B. 174K
Description : Calculate the noise figure of the receiver whose RF amplifier has an input resistance of 1000Ω and an equivalent shot-noise resistance of 2000Ω, a gain of 25 and load resistance of 125 kΩ. Given that the bandwidth is 1. ... to an antenna with an impedance of 75Ω. A. 30.3 B. 3.03 C. 303 D. .303
Last Answer : A. 30.3
Description : ECE Board Exam March 1996 A receiver connected to an antenna whose resistance is 50 ohms has an equivalent noise resistance of 30 ohms. What is the receiver’s noise temperature? A. 754 K B. 464 K C. 174 K D. 293 K
Last Answer : C. 174 K
Description : Two 10 Ω resistors are connected in parallel, their equivalent resistance isA. 5 Ω B. 0.2 Ω C. 15 Ω D. 20 Ω
Last Answer : 5 Ω
Description : Three resistors connected in parallel have values of 12 kΩ, 20kΩ, and 30kΩ. What is the equivalent resistance? A37. 6kΩ Q38. Two resistors connected in parallel have values of 10 kΩ and 30kΩ. What is eht equivalent resistance?
Last Answer : 7.5kΩ
Description : When 2,4 and 6 ohms resistor are connected in parallel their resultant equivalent resistance will be A. 12ohm b. 11/12ohm C. 12/11ohm d. None
Last Answer : C. 12/11ohm
Description : A five ohm and a ten ohm resistor are connected in parallel, what single resistance is "equivalent" to this combination?
Last Answer : ANSWER: 3 AND 1/3 OHM
Description : A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be
Last Answer : R/n2
Description : what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel
Last Answer : equivalent resistance
Last Answer : If two resistances of 10 Ω and 10 Ω are connected in parallel the equivalent resistance is 5 Ω.
Description : In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when connected across `400 Omega` resistance. Calculate what the same voltmeter read
Last Answer : In the circuit diagram shown in Fig. 4.53, a voltmeter reads 30 V when connected across `400 ... when it is connected across `300 Omega` resistance.
Description : Six resistance are connected as shown in figure. If total current flowing is `0.5A`, then the potrential difference `V_(A)-V_(B)` is
Last Answer : Six resistance are connected as shown in figure. If total current flowing is `0.5A`, then the potrential difference `V_(A) ... V B. 6 V C. 2 V D. 4 V
Description : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential drop across B and C measured by vol
Last Answer : Consider the diagram shown below. A Voltmeter of resistance `150 Omega` is connected across A and B. The potential ... 29 B. 27 V C. 31 V D. 30 V
Description : The electrical diagram shown in the illustration shows _____________. EL-0021 A. 'R1', 'R2', and 'R3' are connected is series B. 'R1', 'R2', and 'R3' are connected in parallel C. the voltages measured across ... if 'R1', 'R2' and 'R3' have different values D. the total resistance equals R1 + R2 + R3
Last Answer : Answer: B
Description : If you obtain a low resistance reading with a megohmmeter connected between terminals 'A' and 'C' of the three-phase, wye-connected winding shown in the illustration, there is __________. EL-0074 A. no open circuit ... 'B' C. an open circuit between 'A' and 'C' D. an open circuit in both windings
Description : As shown in the figure, 1 ohm resistance is connected across a source that has a load line v + i = 100. The current through the resistance is A) 25 A B) 50 A C) 100 A D) 200A
Last Answer : As shown in the figure, 1 ohm resistance is connected across a source that has a load line v + i = 100. The current through the resistance is 50 A
Description : Pick up the correct statement from the following (A) The ratio of the up flux and down flux just above the snow surface, is called albedo (B) Spectral albedo of snow is calculated for the semi- ... equivalent height of snow is the height of water column obtained by melting snow (D) All of these
Last Answer : Answer: Option D
Description : How does increase in steam input of the Alternator connected to infinite bus-bars affect this operation?
Last Answer : KW output power of alternator increase with increase in steam input keeping excitation constant.
Description : How does increase in excitation of the Alternator connected to infinite bus-bars affect this operation?
Last Answer : Increase in excitation level of the synchronous generator will effectively increase the reactive power supplied by the generator keeping steam input constant.
Description : A three phase, salient pole synchronous motor is connected to an infinite bus. It is operated at no load a normal excitation. The field excitation of the motor is first reduced to zero ... First increases and then decreases steeply (C) First decreases and then increases steeply (D) Remains constant
Last Answer : B
Description : The steam input in to a turbogenerator connected to infinite bus is increased. Which of the events will take place? (a) The generator will feed more leading KVAR to bus bar and power angle will not ... decrease (d) The generator will feed more lagging KVAR to bus bar and power angle will not change
Last Answer : The steam input in to a turbogenerator connected to infinite bus is increased. Which of the events will take place? (a) The generator will feed more leading KVAR to bus bar and power angle will ... decrease (d) The generator will feed more lagging KVAR to bus bar and power angle will not change