Related InterviewSolutions

• If a shunt `1//10` of the coil resistance is applied to a moving coil galvanometer, its sensitivity becomesA. `10` foldB. `11` foldC. `(1)/(10)` foldD. `(1)/(11)` fold
• In Fig.`6.59`, when an ideal voltmetre is connected across `4000 Omega` resistance, it reads `30 V`. If the voltmeter is connected across `3000 Omega` resistance, it will read A. `20 V`B. `22.5 V`C. `35 V`D. `40 V`
• In the above question, the reading of ammeter is `200//x mA`. What is the value of `x`?
• In a potentiometer experiment the balancing with a cell is at length 240 cm. On shunting the cell with a resistance of `2Omega`, the balancing length becomes 120 cm.The internal resistance of the cell isA. `2 Omega`B. `4 Omega`C. `0.5`D. `1 Omega`
• A galvanometer has a resistance of `3663Omega`. A shunt `S` is connected across it such that (`1//34`) of the total current passes through the galvanometer. Then the value of the shunt isA. `3663 Omega`B. `111 Omega`C. `107.7 Omega`D. `3555.3 Omega`
• An ammetre is obtained by shunting a `30 Omega` galvanometer with a `30 Omega` resistance. What additional shunt should be connected across it to double the range ?A. `15 Omega`B. `10 Omega`C. `5 Omega`D. none of these
• A milliammeter of range `10 mA` has a coli of resistance `1 Omega`. To use it as an ammeter of range `1 A`, the required shunt must have a resistance ofA. `(1)/(101) Omega`B. `(1)/(100) Omega`C. `(1)/(99) Omega`D. `(1)/(9) Omega`
• What shunt resistance is required to make the `1.00 mA`, `20 Omega` Galvanometer into an ammeter with a range of 0 to `50.0A`?
• The ammeter has range 1 ampere without shunt. The range can be varied by using different shunt resistance. The graph between shunt resistance and range will have the nature A. PB. QC. RD. S
• The graph which represents the relation between the total resistance `R` of a multi range moving coil voltmeter and its full scale deflection A. (i)B. (ii)C. (iii)D. (iv)