A. 6.4 A, 6.9 A
B. 6.4 A, 9.6 A
C. 4.6 A, 6.9 A
D. 4.6 A, 9.6 A
Related Mcqs:
- The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other ?
A. 18 Q
B. 36 Q
C. 48 Q
D. 64 Q - With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals_____________?
A. 10 W
B. 20 W
C. 40 W
D. 60 W - A resistance having rating 10 ohms, 10 W is likely to be a__________?
A. metallic resistor
B. carbon resistor
C. wire wound resistor
D. variable resistor - Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be_____________?
A. 160 ohms
B. 80 ohms
C. 20 ohms
D. 10 ohms - Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across______________?
A. Rl
B. Ri
C. either Rl or Ri
D. none of them - Which method can be used for absolute measurement of resistances _______________?
A. Lorentz method
B. Releigh method
C. Ohm’s law method
D. Wheatstone bridge methodUpdated by: Inam
- When one leg of parallel circuit is opened out the total current will______________?
A. reduce
B. increase
C. decrease
D. become zero - If/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?
A. I2Rt
B. I2Rf
C. I2R2t
D. I2R2t* - Which of the following statement is true both for a series and a parallel D. C. circuit?
A. Elements have individual currents
B. Currents are additive
C. Voltages are additive
D. Power are additive - If a parallel circuit is opened in the main line, the current_______________?
A. increases in the branch of the lowest resistance
B. increases in each branch
C. is zero in all branches
D. is zero in the highest resistive branch
