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WorksheetsAC circuit :)
Total questions: 15
Worksheet time: 7mins
Name
Class
Date
1.
The period of a wave is
a)
the same as frequency
b)
time required to complete one cycle
c)
expressed in amperes
d)
none of the above
2.
A heater is rated as 230 V, 10 kW. The value 230 V refers to
a)
average voltage
b)
r.m.s voltage
c)
peak voltage
3.
The r.m.s value of an alternating current is given by steady (D.C) current which when flowing through a given circuit for a given time produces
a)
the more heat than produced by A.C when flowing through the sam circuit
b)
the less heat than produced by A.C when flowing through the sam circuit
c)
the same heat than produced by A.C when flowing through the sam circuit
4.
If a sinusoidal wave has a frequency of 50 Hz with 30 A r.m.s current, which of the following equation represents the wave?
a)
42.42 sin 314.2t
b)
60 sin 25t
c)
30 sin 50t
d)
84.84 sin 25t
5.
The type of current where charges shake back and forth in a circuit
a)
Alternating Current
b)
Direct Current
c)
Voltage
d)
Switchback Current
6.
AC stands for ___.
a)
Alternating Current
b)
Attraction Connections
7.
Current that is used by most household appliances
a)
AC
b)
DC
c)
BC
d)
AC/DC
8.
Current from a battery is
a)
AC
b)
DC
c)
BC
d)
AC/DC
9.
The RMS voltage of a sine wave is the same as the average voltage:
a)
True
b)
False
10.
RMS voltage of a sine wave is the same as:
a)
Effective voltage
b)
Average voltage
c)
Digital equivalent
d)
I can't think of another wrong answer
11.
To find the equivalent energy (power) of a 12 volt battery, which of the following has an EFFECTIVE voltage of 12?
a)
24 volts Vpp
b)
34 Vpp
c)
34 Vp
d)
I have no idea
12.
The amount of time for one complete cycle is called?
a)
Frequency
b)
Period
13.
Frequency is 1/period and period is 1/frequency? True or false?
a)
YEA baby
b)
Not until i meet you
c)
Only when the moon is full
14.
Diagrams of sine waves show two axis. The vertical axis is????
a)
Voltage or amplitude
b)
Time as in period or frequency
c)
Resistance to flow
d)
Tiang bendera sekolah awak
15.
To find the peak voltage of a waveform you:
a)
Divide Peak to peak by two
b)
Multiply Peak to Peak by 2
c)
Divide peak by .707
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