1- One millivolt is one millionth of a volt. (a) True (b) False 2- The prefix micro stands for: (a) 10 (b) 10 (c) 10-3 (d) 10 3- The voltage 2,000,000 V can be expressed in powers of 10 as: (a) 2 mV (b) 2 kV (c) 2 MV (d) 2 GV 4- A charge of 2 C flowing past a given point each second is a current of 2 A. (a) True (b) False 5- The unit of current is: (a) coulomb (b) ampere (c) volt (d) joule 6- Voltage is measured in: Fic (a) watts (b) amperes (c) volts (d) joules per second

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1- One millivolt is one millionth of a volt.
10- The reciprocal of resistance is:
(a) True
(b) False
Ka) voltage
(b) current
2- The prefix micro stands for:
(c) conductance
(d) coulombs
(a) 10
(b) 10
(c) 10-3
(d) 10-
11- An electric heater draws 10 A from a 120-V line. The
resistance of the heater is:
3- The voltage 2,000,000 V can be expressed in powers
(a) 1200 )
(b) 120 2
of 10 as:
(c) 12 )
(d) 1.2 2
(a) 2 mV
(b) 2 kV
(c) 2 MV
(d) 2 GV
12-
The current / in the circuit of Fig. 2.63 is:
4- A charge of 2 C flowing past a given point each
second is a current of 2 A.
(a) -0.8 A
(b) -0.2 A
(c) 0.2 A
(d) 0.8 A
(a) True
(b) False
42
5- The unit of current is:
ww
(a) coulomb
(b) ampere
3 V
5V
(c) volt
(d) joule
60
6- Voltage is measured in:
Figure 2.63
(a) watts
(b) amperes
13- The current I, of Fig. 2.64 is:
(c) volts
(d) joules per second
(a) -4 A
(b) - 2 A
(c) 4 A
(d) 16 A
7 A4A current charging a dielectric material will
accumulate a charge of 24 C after 6 s.
(a) True
(b) False
10 A
8- The voltage across a 1.1-kW toaster that produces a
current of 10 A is:
2A
4A
(a) 11 kV
(b) 1100 V
(c) 110 V
(d) 11 V
9- Which of these is not an electrical quantity?
(a) charge
(b) time
(c) voltage
Figure 2.64
For Review Question 2.7.
(d) current
(e) power
14-Two wires have the same length and the same resistance. One is made from aluminum and the other
from copper. Obtain the ratio of the cross-sectional area of the aluminum wire to that of the copper wire
(PA-2.63×10 2m, po-1.72x10 2m).
Transcribed Image Text:1- One millivolt is one millionth of a volt. 10- The reciprocal of resistance is: (a) True (b) False Ka) voltage (b) current 2- The prefix micro stands for: (c) conductance (d) coulombs (a) 10 (b) 10 (c) 10-3 (d) 10- 11- An electric heater draws 10 A from a 120-V line. The resistance of the heater is: 3- The voltage 2,000,000 V can be expressed in powers (a) 1200 ) (b) 120 2 of 10 as: (c) 12 ) (d) 1.2 2 (a) 2 mV (b) 2 kV (c) 2 MV (d) 2 GV 12- The current / in the circuit of Fig. 2.63 is: 4- A charge of 2 C flowing past a given point each second is a current of 2 A. (a) -0.8 A (b) -0.2 A (c) 0.2 A (d) 0.8 A (a) True (b) False 42 5- The unit of current is: ww (a) coulomb (b) ampere 3 V 5V (c) volt (d) joule 60 6- Voltage is measured in: Figure 2.63 (a) watts (b) amperes 13- The current I, of Fig. 2.64 is: (c) volts (d) joules per second (a) -4 A (b) - 2 A (c) 4 A (d) 16 A 7 A4A current charging a dielectric material will accumulate a charge of 24 C after 6 s. (a) True (b) False 10 A 8- The voltage across a 1.1-kW toaster that produces a current of 10 A is: 2A 4A (a) 11 kV (b) 1100 V (c) 110 V (d) 11 V 9- Which of these is not an electrical quantity? (a) charge (b) time (c) voltage Figure 2.64 For Review Question 2.7. (d) current (e) power 14-Two wires have the same length and the same resistance. One is made from aluminum and the other from copper. Obtain the ratio of the cross-sectional area of the aluminum wire to that of the copper wire (PA-2.63×10 2m, po-1.72x10 2m).
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