The net resistance of the circuit between \(A\) and \(B\) is:

1. | \(\frac{8}{3}~\Omega\) | 2. | \(\frac{14}{3}~\Omega\) |

3. | \(\frac{16}{3}~\Omega\) | 4. | \(\frac{22}{3}~\Omega\) |

Subtopic: Wheatstone Bridge |

89%

From NCERT

AIPMT - 2000

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What is the equivalent resistance between points \(a\) and \(b\), if the value of each resistance is \(R\)?

1. | \(7R\) | 2. | \(5R\) |

3. | \(4R\) | 4. | \(3R\) |

Subtopic: Wheatstone Bridge |

88%

From NCERT

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In the circuit shown in the figure below, the current supplied by the battery is:

1. \(2\) A

2. \(1\) A

3. \(0.5\) A

4. \(0.4\) A

Subtopic: Wheatstone Bridge |

88%

From NCERT

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In a Wheatstone bridge, all four arms have equal resistance \(R.\) If the resistance of the galvanometer arm is also \(R,\) the equivalent resistance of the combination is:

1. | \(R/4\) | 2. | \(R/2\) |

3. | \(R\) | 4. | \(2R\) |

Subtopic: Wheatstone Bridge |

85%

From NCERT

AIPMT - 2003

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In the circuit shown in the figure below, if the potential difference between \(B\) and \(D\) is zero, then value of the unknown resistance \(X\) is:

1. | \(4~\Omega\) | 2. | \(2~\Omega\) |

3. | \(3~\Omega\) | 4. | EMF of a cell is required to find the value of \(X\) |

Subtopic: Wheatstone Bridge |

82%

From NCERT

PMT - 1986

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Three resistances \(\mathrm P\), \(\mathrm Q\), and \(\mathrm R\), each of \(2~\Omega\) and an unknown resistance \(\mathrm{S}\) form the four arms of a Wheatstone bridge circuit. When the resistance of \(6~\Omega\) is connected in parallel to \(\mathrm{S}\), the bridge gets balanced. What is the value of \(\mathrm{S}\)?

1. \(2~\Omega\)

2. \(3~\Omega\)

3. \(6~\Omega\)

4. \(1~\Omega\)

Subtopic: Wheatstone Bridge |

81%

From NCERT

AIPMT - 2007

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Figure \((a)\) below shows a Wheatstone bridge in which \(P,Q,R,S\) are fixed resistances, \(G\) is a galvanometer, and \(B\) is a battery. For this particular case, the galvanometer shows zero deflection. Now, only the positions of \(B\) and \(G\) are interchanged. as shown in figure \((b).\) The new deflection of the galvanometer:

1. | is to the left |

2. | is to the right |

3. | is zero |

4. | depends on the values of \(P,Q,R,S\) |

Subtopic: Wheatstone Bridge |

78%

From NCERT

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The resistances of the four arms \(P,Q,R~\text{and}~S\) in a Wheatstone’s bridge are \(10~\Omega,30~\Omega,30~\Omega\) and \(90~\Omega\) respectively. The emf and internal resistance of the cell are \(7~\text{volt}\) and \(5~\Omega\) respectively. If the galvanometer resistance is \(50~\Omega\) the current drawn from the cell will be:

1. \(0.2~\text{A}\)

2. \(0.1~\text{A}\)

3. \(2.0~\text{A}\)

4. \(1.0~\text{A}\)

2. \(0.1~\text{A}\)

3. \(2.0~\text{A}\)

4. \(1.0~\text{A}\)

Subtopic: Wheatstone Bridge |

76%

From NCERT

AIPMT - 2013

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In the figure shown, each resistor has resistance \(R.\) Match Column I and Column II.

Column I |
Column II |
||

(A) |
Equivalent resistance between \(a\) and \(b\) | (P) |
\(\dfrac{R}{2}\) |

(B) |
Equivalent resistance between \(a\) and \(c\) | (Q) |
\(\dfrac{5R}{8}\) |

(C) |
Equivalent resistance between \(b\) and \(d\) | (R) |
\(R\) |

1. | A → P, B → Q, C → R |

2. | A → Q, B → P, C → R |

3. | A → R, B → P, C → Q |

4. | A → R, B → Q, C → P |

Subtopic: Wheatstone Bridge |

74%

From NCERT

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For the network shown in the figure below, the value of the current \(i\) is:

1. \(\frac{18V}{5}\)

2. \(\frac{5V}{9}\)

3. \(\frac{9V}{35}\)

4. \(\frac{5V}{18}\)

Subtopic: Wheatstone Bridge |

73%

From NCERT

AIPMT - 2005

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