A primary cell has an e.m.f. of 1.5 volts, when short-circuited it giv – McqOptions

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1.	A primary cell has an e.m.f. of 1.5 volts, when short-circuited it gives a current of 3 amperes. The internal resistance of the cell is [CPMT 1976, 83]
A.	4.5\[ohm\]
B.	2\[ohm\]
C.	0.5\[ohm\]
D.	1/4.5\[ohm\]
Answer» D. 1/4.5\[ohm\]

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