1.

A cell of e.m.f. 2 V and internal resistance 1.2 Ω is connected to an ammeter of resistance 0.8 Ω and two resistors of 4.5 Ω and 9 Ω as shown in the figure. Find: (a) the reading of the ammeter, (b) the potential difference across the terminals of the cell, and (c) the potential difference across the 4.5 Ω resistor.

Answer»

A cell of e.m.f. 2 V and internal resistance 1.2 Ω is connected to an ammeter of resistance 0.8 Ω and two resistors of 4.5 Ω and 9 Ω as shown in the figure.
Find:
(a) the reading of the ammeter,
(b) the potential difference across the terminals of the cell, and
(c) the potential difference across the 4.5 Ω resistor.



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