(A) Energy
(B) Power
(C) Flux
(D) Current
Tag: Physics Mcq Questions and Answers
Potential difference between the head and tail of an electric eel is?
(A) 600 Volts
(B) 700 Volts
(C) 800 Volts
(D) 900 Volts
If a resistor is transversed in the opposite direction of current then the change in potential is?
(A) Positive
(B) Negative
(C) Constant
(D) Zero
If a resistor of resistance R is connected across a battery of internal resistance ‘r’ then output power will be maximum when?
(A) R=1/4 r
(B) R=r
(C) R=2r
(D) R=4r
A rheostat can be used as?
(A) Rectifier
(B) Amplifier
(C) Oscillator
(D) Potential Divider
Numerical value of black colour in carbon resistors is?
(A) 0
(B) 1
(C) 2
(D) 3
An accurate measurement is the one which has __ fractional error.
(A) Negative
(B) Less
(C) Highest
(D) Positive
If error in measurement of radius of a circle is 2% then permissible error its area will be?
(A) 1%
(B) 2%
(C) 4%
(D) 8%