In a potentiometer of 5 wires, the balance point is obtained on the 2n – McqOptions

MCQOPTIONS

1.	In a potentiometer of 5 wires, the balance point is obtained on the 2nd wire. To shift the balance point to the 4th, we should decrease the current of the main circuit.
A.	True
B.	False
Answer» B. False

Discussion

No Comment Found

Related MCQs

Pick out the application of potentiometer from the following.
A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10-9 m and the current passing through it is 0.5A and the cross sectional area of the wire is 10-8m2. Calculate the potential gradient along the potentiometer wire.
The balancing length of a potentiometer is at 120 cm. On shunting the cell with a resistance of 4 ohms, the balancing point shifts to a length of 60 cm. Then, find the internal resistance of the cell.
In a potentiometer of 5 wires, the balance point is obtained on the 2nd wire. To shift the balance point to the 4th, we should decrease the current of the main circuit.
A potentiometer wire of length 20 m has a resistance of 50 ohms. It is connected in series with a resistance box and a 5 V storage cell. If the potential gradient along the wire is 0.5 mV/cm, what is the resistance unplugged in the box?
A potentiometer wire of length 100 cm has a resistance of 30 ohms. It is connected in series with a resistance of 20 ohms and accumulator of emf 8V having negligible internal resistance. A source of 1.2V is balanced against a length L of the potentiometer wire. What is the value of L?