Fizik 1

1. Which graph shows the relationship between potential difference, V, and current, I, for a resistor that obeys Ohm’s law? (SPM03)

ans: A - Ohm's law will give a straight line graph

2. Which diagram shows the correct electric field pattern?(SPM03)

ans:B, lines of field shall move out from +ve charge.

3. Which circuit can be used to determine the resistance of a bulb? (SPM03)

ans: C, voltmeter should be connected in parallel across the bulb, Ammeter must be connected in series

4.The electric current supplied by a battery in a digital watch is 3.0 x 10 A. What is the quantity of charge that flows in 2 hours? (SPM04) A 2.5x107C B 1.5x105C C 6.OxlO5C D 3.6x103C E 2.2x10’C ans: E, Q=I x t , t= 2 x60 =120s, then use the value of current & substitute it in the formula.