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2020 CAIE AS & A level October November Physics Paper 13 Q N 38 (9702/13/O/N/20) by Sajit C Shakya
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2020 CAIE AS & A level October November Physics Paper 13 Q. No. 38 (9702/13/O/N/20) by Sajit Chandra Shakya from Nepal
Chapter - CURRENT ELECTRICITY
A power supply and a solar cell are compared using the potentiometer circuit shown.
The potentiometer wire PQ is 100.0 cm long and has a resistance of 5.00 .
The power supply has an e.m.f. of 2.000 V and the solar cell has an e.m.f. of 5.00 mV.
Which resistance R must be used so that the galvanometer reads zero when PS = 40.0 cm?
Chapter - CURRENT ELECTRICITY
A power supply and a solar cell are compared using the potentiometer circuit shown.
The potentiometer wire PQ is 100.0 cm long and has a resistance of 5.00 .
The power supply has an e.m.f. of 2.000 V and the solar cell has an e.m.f. of 5.00 mV.
Which resistance R must be used so that the galvanometer reads zero when PS = 40.0 cm?
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