A simple slide wire potentiometer is used for measurement of current i – McqOptions

MCQOPTIONS

1.	A simple slide wire potentiometer is used for measurement of current in a circuit. The voltage drop across a standard resistor of 0.1 Ω is balanced at 75 cm. Find the magnitude of current if the standard cell emf 1.45 volt is balanced at 50 cm.
A.	40 A
B.	35 A
C.	15.5 A
D.	21.75 A
Answer» E.

Discussion

No Comment Found

Related MCQs

A simple slide wire potentiometer is used for measurement of current in a circuit. The voltage drop across a standard resistor of 0.1 Ω is balanced at 75 cm. Find the magnitude of current if the standard cell emf 1.45 volt is balanced at 50 cm.
DC potentiometer is a/an ________ type instrument.
How many turns of wire are needed to provide a potentiometer with a resolution of 0.05%?
Potentiometer sensitivity can be increased by
Current in a circuit is measured using a simple slide wire. What will be the Voltage drop per unit lengthif the standard cell is of emf 2.38 V balanced at length of 35 cm ?
High value pot resistance leads to _____.
_______ can be used to output a resistance which would be a function of the voltage applied to it.
A 3-turn 100 kΩ potentiometer with 1% linearity uses 30 V supply. What is the potentiometer constant?
Potentiometer is basically a ____________ type instrument
A Murray loop test is conducted on a 400-m long faulty cable. At balance, the resistance connected to the faulty core was set to 40 Ω and the resistance of the resistor connected to the sound core was 60 Ω. What is the distance of the fault from the test end?