A galvanometer has a resistance of `30Omega` and a current of 2 mA is needed to give full scale deflection. What is the resistance needed and how is it to be connected to convert the galvanometer (i) into an ammeter of 0.3 A range and (ii) into a voltmeter of 0.2 V range?
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A galvanometer coil has a resistance of `990Omega` and it shows full scale deflection for a current of 10mA. Calculate the value of resistance require
Given that `R_(g)=990Omega,I_(g)=10mA=0.01A,I=1A` Required shunt resistance `=( I_(g)R_(g))/((I-I_(g)))=(0.01xx990)/((1-0.01))=(0.01xx990)/(0.99)=10Omega`
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A moving coil galvanometer has a resistance of 200`Omega` and gives a full-scale deflection with a current of 10mA. Explain how you would convert it i
Correct Answer - `2.02Omega` in pareallel, `800Omeaga` in series, `R_(A)=2Omega`,`R_(v)=1000Omega`
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A moving coild galvanometer of resistance `20`Omega gives a full scale deflection when a current of 1mA is passed through it. It is to be converted in
Correct Answer - `80Omega`
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A galvanometer with a coil resistance of `100Omega` shows a full-scale deflection when a current of 1 mA is passed through it. What is the value of th
Correct Answer - `0.01Omega` yes
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A current of 10 A produces a deflection of `45^(@)` in a tangent galvanometer. What is the value of the current which will produce a deflection of `30
Correct Answer - 5.77 A
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Calculate the value of resistance needed to convert a galvanometer of resistance `200Omega`, which gives a full scale deflection for a current of 5 mA
Correct Answer - `1800Omega` in series
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A galvanometer with a coil of resistance `10.0Omega` shows full scale deflection for a current of 50mA. How will you convert the galvanometer into (i)
Correct Answer - `10//9Omega` in parallel `90Omega` in series
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A galvanometer has a resistance of `15.0Omega` and the meter shows full scale deflection for a current of 2.0 mA. How will you convert this meter into
Correct Answer - (i). 0.006 `Omega` in parallel, `R_(A)=0.006Omega` (ii). `7485Omega` in series, `R_(V)=7500Omega`
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A galvanometer has a resistance of `100Omega`. A difference of potential of 1.0 V between its terminals gives a full scale deflection. Calculate the s
Correct Answer - `0.5Omega`
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A galvanometer of resistance `3663Omega` gives full scale deflection for a certain current `i_(g)`. Calculate the resistance of the shunt which when j
Correct Answer - `111Omega,107.7Omega`
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