**Description :** what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

**Last Answer :** equivalent resistance

**Description :** Parallel Reactance and Resistance Example 1

**Last Answer :** Parallel Reactance and Resistance Example 1

**Description :** When two 100 kΩ resistors are connected in parallel, net resistance is

**Last Answer :** When two 100 kΩ resistors are connected in parallel, net resistance is 50 kΩ

**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 :** Consider the following statements : If a high Q parallel resonant circuit is loaded with a resistance 1. The circuit impedance reduces. 2. The resonant frequency remains the same. 3. The bandwidth reduces. Which of the above statements is/are correct ?

**Last Answer :** 1

**Description :** When an additional resistor is connected across an existing parallel circuit, the total resistance: A. remains the same B. decreases by the value of the added resistor C. increases by the value of the added resistor D. decreases

**Last Answer :** When an additional resistor is connected across an existing parallel circuit, the total resistance: decreases

**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

**Last Answer :** If two resistances of 10 Ω and 10 Ω are connected in parallel the equivalent resistance is 5 Ω.

**Description :** An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?

**Last Answer :** An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms, both resistance and inductance carry equal currents.

**Description :** if the resistance is connected in parallel the total resistance decreases why?

**Last Answer :** Because if the resistances are connected in parallel it provide a conducting path for current to flow. So more the current paths less the resistance

**Description :** What two circuits one series and one parallel use light bulbs to provide resistance. Both circuits have the same number of light bulbs?

**Last Answer :** Series circuit gives higher resistance compared to parallelcircuit.

**Description :** Which of the following statements is true if a 100 watt lamp and a 75 watt lamp are connected in parallel across a 100 volt power supply? A. The 75 watt lamp will draw as much current as the 100 ... Current flow will be the same across each lamp. D. The 75 watt lamp will have a higher resistance.

**Last Answer :** Answer: D

**Description :** Which of the following statements concerning a simple parallel resistance circuit is correct? A. The voltage drop across each resistor is the same. B. The total current flow equals the reciprocal ... resistances. D. The total voltage equals the sum of the individual voltages across each resistance.

**Last Answer :** Answer: A

**Description :** Which of the electrical properties listed will always be the same for each component in a parallel circuit? A. Impedance B. Current C. Resistance D. Voltage

**Last Answer :** Answer: D

**Description :** Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for ... a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature

**Last Answer :** (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs

**Description :** When two batteries are connected in parallel, it should be ensured that A. They have same emf B. They have same make C. They have same ampere hour capacity D. They have identical internal resistance

**Last Answer :** A. They have same emf

**Description :** For a parallel connection of light bulbs, which of the following statements is correct? w) The resistance of each light bulb must be the same. x) If one goes out they all go out. y) Each of the light bulbs operates independently.

**Last Answer :** ANSWER: Y -- EACH OF THE LIGHT BULBS OPERATES INDEPENDENTLY.