A. equal to the atomic number of the atom
B. equal to the charge of an electron
C. equal to the charge of the number of electrons in an atom (#) zero
Related Mcqs:
- How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?
A. 10
B. 60
C. 600
D. 1200 - The unit of resistivity is
A. Ω.
B. Ω – metre.
C. Ω / metre.
D. Ω / m². - Power dissipation in ideal inductor is
A. Maximum
B. Minimum
C. Zero
D. A finite value - The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around_______________?
A. 1.2 x 10~8 Q-m
B. 1.4 x 10~8 Q-m
C. 1.6 x 10″”8 Q-m
D. 1.8 x 10″8 Q-m - Varistors are______________?
A. insulators
B. non-linear resistors
C. carbon resistors
D. resistors with zero temperature coefficient - The thickness of insulation provided on the conductor depends on_____________?
A. the magnitude of voltage on the conductor
B. the magnitude of current flowing through it
C. both A. and (b)
D. none of the above - When one leg of parallel circuit is opened out the total current will______________?
A. reduce
B. increase
C. decrease
D. become zero - Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be_________________?
A. 9 times
B. 1/9 times
C. 1/3 times
D. 3 times - All good conductors have high____________?
A. conductance
B. resistance
C. reluctance
D. thermal conductivity - 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*
