Current electricity questions | form two Physics

A current of 0.2A flows through a resistor of 20Ω. The p.d. across the resistor is:
A. 0.4V
B. 4V
C. 40V
D. 100V

Answer / Solution

UNSOLVED

Current electricity is measured in:
A. amperes
B. coulombs
C. ohms
D. volts

Answer / Solution

UNSOLVED

The resistance of a lamp operating on a line of m volts and drawing a current of n amperes is
A. n/m ohms.
B. n ohms.
C. mn ohms.
D. m/n ohms.

Answer / Solution

UNSOLVED

An ammeter is an instrument for measuring:
A. Length.
B. Resistance.
C. Capacitance.
D. Current.

Answer / Solution

UNSOLVED

A body which gains excess electrons becomes:
A. Negatively charged
B. Positively charged
C. Electrified
D. Both A and B are correct

Answer / Solution

UNSOLVED