1. Which of the following is used to measure current?

(a) Ohmmeter

(b) Ammeter

(c) Electric meter

(d) Voltmeter

2. To determine the resistance of a load, you can use an ammeter and a voltmeter to take the required measurements in the circuit. To be successful,

(a) the voltmeter and ammeter should both be in series with the load

(b) the voltmeter should be in parallel with the load and the ammeter in series

(c) the voltmeter should be in series with the load and the ammeter in parallel

(d) both the voltmeter and the ammeter should be in parallel with the load

3. An ohm is a unit of

(a) electric potential difference

(b) resistance

(c) current

(d) power

4. Battery A consists of three 1.5-V cells in series and battery B consists of three 1.5-V cells in parallel. Which of the following statements is correct?

(a) Both batteries will last the same length of time

(b) Battery A will last three times as long as battery B

(c) Battery B will last three times as long as battery A

(d) Both batteries will last twice as long as an individual cell

5. The unit for measuring electric current is the

(a) ampere

(b) volt

(c) coulomb

(d) ohm

6. Which of the following is a good conductor?

(a) silk

(b) sand

(c) rubber

(d) silver

7. Ohm’s Law, stated in mathematical terms, is

(a) R = V x I

(b) R = I / V

(c) R = V / I

(d) R = V2 x I