Electrical Instruments
PHXII03:CURRENT ELECTRICITY

357265 Assertion :
In a Metre Bridge experiment, null point for an unknown resistance is measured. Now, the unknown resistance is put inside an encloser maintained at a higher temperature. The null point can be obtained at the same point as before by decreasing the value of the standard resistance.
Reason :
Resistance of a metal increases with increase in temperature

1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII03:CURRENT ELECTRICITY

357266 The given figure shows rough sketch of meter bridge. (G) deflects at length lcm. Now, R1 and R2 are interchanged, then balancing length increases by 25cm. Find R1/R2
supporting img

1 35
2 25
3 23
4 52
PHXII03:CURRENT ELECTRICITY

357267 In a metre-bridge experiment, when the resistances in the gaps were interchanged, the balance-point did not shift at all. The ratio of resistances must be

1 Very large
2 Very small
3 Equal to unity
4 Zero
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII03:CURRENT ELECTRICITY

357264 On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1 kΩ. How much was the resistance on the left slot before interchanging the resistances?

1 505kΩ
2 550kΩ
3 910kΩ
4 990kΩ
PHXII03:CURRENT ELECTRICITY

357265 Assertion :
In a Metre Bridge experiment, null point for an unknown resistance is measured. Now, the unknown resistance is put inside an encloser maintained at a higher temperature. The null point can be obtained at the same point as before by decreasing the value of the standard resistance.
Reason :
Resistance of a metal increases with increase in temperature

1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII03:CURRENT ELECTRICITY

357266 The given figure shows rough sketch of meter bridge. (G) deflects at length lcm. Now, R1 and R2 are interchanged, then balancing length increases by 25cm. Find R1/R2
supporting img

1 35
2 25
3 23
4 52
PHXII03:CURRENT ELECTRICITY

357267 In a metre-bridge experiment, when the resistances in the gaps were interchanged, the balance-point did not shift at all. The ratio of resistances must be

1 Very large
2 Very small
3 Equal to unity
4 Zero
PHXII03:CURRENT ELECTRICITY

357264 On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1 kΩ. How much was the resistance on the left slot before interchanging the resistances?

1 505kΩ
2 550kΩ
3 910kΩ
4 990kΩ
PHXII03:CURRENT ELECTRICITY

357265 Assertion :
In a Metre Bridge experiment, null point for an unknown resistance is measured. Now, the unknown resistance is put inside an encloser maintained at a higher temperature. The null point can be obtained at the same point as before by decreasing the value of the standard resistance.
Reason :
Resistance of a metal increases with increase in temperature

1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII03:CURRENT ELECTRICITY

357266 The given figure shows rough sketch of meter bridge. (G) deflects at length lcm. Now, R1 and R2 are interchanged, then balancing length increases by 25cm. Find R1/R2
supporting img

1 35
2 25
3 23
4 52
PHXII03:CURRENT ELECTRICITY

357267 In a metre-bridge experiment, when the resistances in the gaps were interchanged, the balance-point did not shift at all. The ratio of resistances must be

1 Very large
2 Very small
3 Equal to unity
4 Zero
PHXII03:CURRENT ELECTRICITY

357264 On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is 1 kΩ. How much was the resistance on the left slot before interchanging the resistances?

1 505kΩ
2 550kΩ
3 910kΩ
4 990kΩ
PHXII03:CURRENT ELECTRICITY

357265 Assertion :
In a Metre Bridge experiment, null point for an unknown resistance is measured. Now, the unknown resistance is put inside an encloser maintained at a higher temperature. The null point can be obtained at the same point as before by decreasing the value of the standard resistance.
Reason :
Resistance of a metal increases with increase in temperature

1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
3 Assertion is correct but reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII03:CURRENT ELECTRICITY

357266 The given figure shows rough sketch of meter bridge. (G) deflects at length lcm. Now, R1 and R2 are interchanged, then balancing length increases by 25cm. Find R1/R2
supporting img

1 35
2 25
3 23
4 52
PHXII03:CURRENT ELECTRICITY

357267 In a metre-bridge experiment, when the resistances in the gaps were interchanged, the balance-point did not shift at all. The ratio of resistances must be

1 Very large
2 Very small
3 Equal to unity
4 Zero
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here