Current electricity questions | form three Physics

If one cell in a perfect three-cell torch is placed in the opposite direction, then switching on the torch will:
A. give normal light
B. give bright light
C. give dim light
D. not give light

Answer / Solution

UNSOLVED

a) State Ohm’s Law.
b) A 12 volt battery is connected across a resistor of 15 ohms.
(i) Draw an electrical circuit showing the stated components and the direction of flow of current.
(ii) Calculate the moment of current flowing.

Answer / Solution

UNSOLVED

The force that drives an electric current through an electric component is called
A Coulomb B Farad C Ampere
D Potential difference E An e.m.f.

Answer / Solution

UNSOLVED

Which device is used to control the flow of current in one direction within an electronic circuit?

Answer / Solution

UNSOLVED

When a galvanometer is used to measure electric current in a circuit it must be connected with a
A shunt in series B multiplier in parallel
C shunt in parallel D multiplier in series
E Shunt and multiplier in parallel

Answer / Solution

UNSOLVED