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Question 0

A calibrated potentiometer is used to measure the e.m.f. of a cell because the

  • A.internal resistance of a cell is small compared with that of the potentiometer
  • B.potentiometer has a linear scale
  • C.potentiometer takes no current from the cell
  • D.resistance of the potentiometer is less than that of a voltmeter
  • E.
Objective

Question details

Exam body
JAMB
Subject
Physics
Year
1989
Question no.
#0
Type
Objective
Previous · Q0Three resistors, with substances 250\(\Omega\), 500\(\Omega\) and 1k\(\Omega\)… Next · Q0 An ammeter of resistance 1.0\(\Omega\) has a full-scale deflection of 50mA…

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