Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A galvanometer coil has a resistance of 12 Ω and the metre shows full scale deflection for a current of 3 mA. How will you convert the metre into a voltmeter of range 0 to 18 V?

Options:

Resistance in series = 5988 Ω

B should be in a vertically downward direction. 

 Circular trajectory of radius 1.0 mm normal to B. 

none of the

Correct Answer:

Resistance in series = 5988 Ω