Physics Past Questions

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326

The electrolyte in the Nickei-iron (Nife) accumulator is

A. potassium hydroxide solution
B. dilute tetraoxosulphate(VI)acid
C. copper tetraoxosulphate(VI)solution
D. ammonium chloride solution

View Answer & Discuss (9) JAMB 2006

327

During electrolysis, 2.0 g of a metal is deposited using a current of 0.5 A in 3 hours. The mass of the same metal which can be deposited using a current of 1.5 A in 1 hour is?

A. 1.0 g
B. 0.5 g
C. 3.0 g
D. 2.0 g

View Answer & Discuss JAMB 2006

328

When a certain a.c supply is connected to a lamp, it lights with the same brightness as it does with a 12 V d.c battery. Then r.m.s value of the a.c supply is?

A. 12.0 V
B. 3.5 V
C. 17.0 V
D. 8.5

View Answer & Discuss (18) JAMB 2006

329

An ammeter of resistance 5Ω has a full-scale deflection when a current of 50 mA flows in it. The value of the resistor required to adapt it to measure a current of 5 A is?