A moving-coil galvanometer which gives a full-scale on deflection with 0.005A is converted to a voltmeter reading up to 5V using an external resistance of 975Ω. What is the resistance of the metre?

By: |Published on: Mar 24|Categories: Physics WAEC| 0 comments

A. 0.25Ω
B. 2.50Ω
C. 25.00Ω
D. 250.00Ω

Correct Answer:

Option C = 25.00Ω

Explanation

Using: E = I(R+r)

Users Also Read These:

SEE ALSO  If no net force acts on an object, the object maintains a state of rest or constant speed in a straight line. The above is a statement of Newton's?

Copyright warnings! Do not copy.