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Q. No.A meter bridge works on the principle of:
| 1. | Balanced Wheatstone bridge |
| 2. | Kirchhoff's voltage law |
| 3. | Kirchhoff's current law |
| 4. | Principle of superposition |
Subtopic: Â Meter Bridge |
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Level 1: 80%+
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In a meter bridge, there are two unknown resistance \(R_1\) and \(R_2\). The ratio of \(R_1\) and \(R_2\), if the galvanometer shows a null deflection at 30 cm from one end:
1. \(2:7\)
2. \(5:4\)
3. \(3:7\)
4. \(2:9\)
1. \(2:7\)
2. \(5:4\)
3. \(3:7\)
4. \(2:9\)
Subtopic: Â Meter Bridge |
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Level 1: 80%+
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In a metre bridge with standard resistance of \(10\) \(\Omega\) in the left gap, the ratio of balancing length of meter bridge wire is \(2:3.\) The unknown resistance in the right gap is:
1. \(15\) \(\Omega\)
2. \(40\) \(\Omega\)
3. \(25\) \(\Omega\)
4. \(17.5\) \(\Omega\)
1. \(15\) \(\Omega\)
2. \(40\) \(\Omega\)
3. \(25\) \(\Omega\)
4. \(17.5\) \(\Omega\)
Subtopic: Â Meter Bridge |
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In a meter bridge experiment (as shown in the figure), the balance point is found to be \(40~\text{cm}\) from end \(A,\) given that resistance \(Y\) is \(12.0~\Omega.\) What is the value of the resistance \(X?\)
1. \(4~\Omega\)
2. \(8~\Omega\)
3. \(10~\Omega\)
4. \(14~\Omega\)
1. \(4~\Omega\)
2. \(8~\Omega\)
3. \(10~\Omega\)
4. \(14~\Omega\)
Subtopic: Â Meter Bridge |
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Level 1: 80%+
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Choose the correct statement regarding meter bridge:
| 1. | A meter bridge works on the principle of null deflection. |
| 2. | The meter bridge usually consists of a wire of length 1 m and a uniform cross-sectional area. |
| 3. | The meter bridge is used for the precise measurement of low resistance. |
| 4. | All of these |
Subtopic: Â Meter Bridge |
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Resistances are connected in a meter bridge circuit as shown in the figure. The balancing length \(l_1\) is \(40\) cm. Now an unknown resistance \(x\) is connected in series with \(P\) and the new balancing length is found to be \(80\) cm measured from the same end. Then the value of \(x\) will be:
1. \(10~\Omega\)
2. \(20~\Omega\)
3. \(30~\Omega\)
4. \(40~\Omega\)
1. \(10~\Omega\)
2. \(20~\Omega\)
3. \(30~\Omega\)
4. \(40~\Omega\)
Subtopic: Â Meter Bridge |
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Level 1: 80%+
JEE
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The given, figure represents a meter bridge setup, with the galvanometer showing null deflection at the balance point.
What is the value of the unknown resistor \(R?\)
1. \(13.75~\Omega\)
2. \(220~\Omega\)
3. \(110~\Omega\)
4. \(55~\Omega\)
Subtopic: Â Meter Bridge |
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