Questions
A galvanometer of resistance 200 gives full scale deflection with 15 milli-ampere current. In order to convert it into a 15 V range voltmeter, the value of resistance connected in series is
detailed solution
Correct option is A
We know thatR=Vig−G=1515×10−3−200∴ R=800ΩTalk to our academic expert!
Similar Questions
A tangent galvanometer has a coil with 50 turns and radius equal to 4 cm. A current of 0.1 amp is passing through it. The plane of the coil is set parallel to the earth's magnetic meridian. If the value of the earth's horizontal component of the magnetic field is 7x 10-5 Tesla and weber/amp' x metre, then the deflection in the galvanometer needle will be
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