# RAD 107 name___________________________ QUIZ 8 1. Given

```RAD 107
name___________________________
QUIZ 8
1. Given that C = 40 farads and R = 1000 Ohms, about how long will it take the capacitor in the
circuit below to charge once the switch is closed?
a) 11.1 hours
b) 40 seconds
c) 25 seconds
d) 4000 seconds
__a__
2. A 200 Henry inductor and a 100 Ohm resistor are connected in series an L-R circuit. About how
long after a DC voltage is applied will it take the current is in this circuit approach its maximum value.
a) 0.5 sec
b) 2 sec
c) 200 sec
d) 18 sec
__b__
3. The output of a transformer is a sine wave whose peak value is 14.1 volts. What is the RMS
value of the output?
a) 22 volts
b) 19 volts
c) 10 volts
d) 14.1 volts
__c__
4. What is the reactance of a 1000-microHenry inductor in circuit in which a 60-Hertz AC current
flows?
a) 14 Ohms
b) 2.9 Ohms
c) 11.8 Ohms
d) 0.38 Ohms
__d__
5. . Which circuit element has a reactance the rises with increasing AC frequency.
a) inductor
b) capacitor
c) resistor
d) transformer
__a__
```