Q. No.1. \(900~\Omega\)
2. \(1800~\Omega\)
3. \(500~\Omega\)
4. \(1000~\Omega\)
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| 1. | \(\dfrac{1}{40}\) | 2. | \(\dfrac{1}{4}\) |
| 3. | \(\dfrac{1}{140}\) | 4. | \(\dfrac{1}{10}\) |
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| 1. | resistance of \(19.92~ \text{k} \Omega\) parallel to the galvanometer |
| 2. | resistance of \(19.92~ \text{k} \Omega\) in series with the galvanometer |
| 3. | resistance of \(20 ~\Omega\) parallel to the galvanometer |
| 4. | resistance of \(20~ \Omega\) in series with the galvanometer |
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| 1. | putting in series resistance of \(240 ~\Omega \text {. }\) |
| 2. | putting in parallel resistance of \(240 ~\Omega \text {. }\) |
| 3. | putting in series resistance of \(15~ \Omega \text {. }\) |
| 4. | putting in parallel resistance of \(15~ \Omega \text {. }\) |
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A milliammeter of \(10\) mA has a coil resistance of \(1~\Omega\). To use it as an ammeter of range \(1\) A, the required shunt must have a resistance of:
1. \(\frac{1}{101}~\Omega \)
2. \(\frac{1}{100}~\Omega \)
3. \(\frac{1}{99}~\Omega \)
4. \(\frac{1}{9}~\Omega \)
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1. \(10~\Omega\)
2. \(20~\Omega\)
3. \(8~\Omega\)
4. \(5~\Omega\)
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What properties will a galvanometer that is acting as a voltmeter have?
| 1. | high resistance in series with its coil | 2. | low resistance in parallel with its coil |
| 3. | low resistance in series with its coil | 4. | high resistance in parallel with its coil |
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| 1. | \(\frac{120}{3}~\Omega \) | 2. | \(\frac{30}{7}~\Omega \) |
| 3. | \(\frac{170}{3}~\Omega \) | 4. | \(\frac{150}{7}~\Omega \) |
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When a \(12~\Omega\) resistor is connected in parallel with a moving coil galvanometer, its deflection reduces from \(50\) divisions to \(10\) divisions. What will be the resistance of the galvanometer?
1. \(24~\Omega\)
2. \(36~\Omega\)
3. \(48~\Omega\)
4. \(60~\Omega\)
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1. \(0.25~\text{A}\)
2. \(0.8~\text{A}\)
3. \(0.2~\text{A}\)
4. \(0.5~\text{A}\)
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