Moving Charges and Magnetism questions
775 published questions with worked solutions.
- If a galvanometer current is 10 mA, resistance of the galvanometer is 40 and shunt of 2 is connected to the galvanometer, the...
- The resistance of an ammeter of 1 A range is 0.018 . How will you convert it to an ammeter measuring up to 10 ampere?
- A potential difference of 0.75 V applied across a galvanometer causes a current of 15 mA to pass through it. If it can be...
- In an ammeter 5% of the main current is passing through the galvanometer. If the resistance of galvanometer is G, then the...
- A voltmeter of resistance g ohm has range v volt. To increase its range upto (n v) one must connect
- A galvanometer of resistance 25 is shunted by 2.5 resistance. The part (fraction) of the total current that flows through the...
- The shunt that must be used to send ( 1 80 )^ th part of the main current through a galvanometer is (resistance of galvanometer...
- A galvanometer (G = 1000 ) gives full scale deflection, when a current 10 flows through it. It is required to use it to measure a...
- An ammeter is obtained by shunting a 30 galvanometer with 30 resistance. What additional shunt be connected across it, to double...
- A voltmeter reads 3 V at full-scale deflection and is graded as 6000 /V. What resistance should be connected in series with it so...
- A voltmeter of range 3 V and resistance 200 cannot be converted to an ammeter of range
- When a galvanometer of resistance G is converted into an ammeter of range I A, then current passing through shunt (s) is :
- When galvanometer of resistance G is converted into ammeter of range I A, then current passing through galvanometer (g) is :
- If a galvanometer is shunted by ( 1 r )^ th of its resistance, then fraction of total current passing through galvanometer is :
- A milliammeter of 0 - 1 mA range and resistance of 100 is to be converted into a 0 - 100 mA range meter. How will you do it :
- A galvanometer gives full scale deflection when current passed through it is 1 mA. Its resistance is 100 . Without connecting...
- A moving coil galvanometer gives full scale deflection when a current of 0.005 A is passed through its coil. It is converted into...
- Which of the following has no effect on the sensitivity of a M.C.G. ?
- What is the relation between voltage sensitivity s_v and the current sensitivity s_i of a moving coil galvanometer of resistance...
- The sensitivity of a moving coil galvanometer depends on
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