Physics equations/21-Circuits, Bioelectricity, and DC Instruments/Q:circuits
equations for this quiz
Solutions(pdf)
Testbank
A
1
An ideal 5.2 V voltage source is connected to two resistors in
parallel
series
. One is 1.2
k
Ω
{\displaystyle k\Omega }
, and the other is 2.8
k
Ω
{\displaystyle k\Omega }
. What is the current through the larger resistor?
a) 0.7 mA.
b) 0.9 mA.
c) 1.1 mA.
d) 1.3 mA.
e) 1.5 mA.
2
A 7.7 ohm resistor is connected in series to a pair of 5.8 ohm resistors that are in parallel. What is the net resistance?
a) 6.1 ohms.
b) 7 ohms.
c) 8 ohms.
d) 9.2 ohms.
e) 10.6 ohms.
3
Two 8 ohm resistors are connected in parallel. This combination is then connected in series to a 6.6 ohm resistor. What is the net resistance?
a) 9.2 ohms.
b) 10.6 ohms.
c) 12.2 ohms.
d) 14 ohms.
e) 16.1 ohms.
4
An ideal 7.9 volt battery is connected to a 0.09 ohm resistor. To measure the current an ammeter with a resistance of 20
m
Ω
{\displaystyle m\Omega }
is used. What current does the ammeter actually read?
a) 71.8 A.
b) 82.6 A.
c) 95 A.
d) 109.2 A.
e) 125.6 A.
5
A battery has an emf of 5.3 volts, and an internal resistance of 326
k
Ω
{\displaystyle k\Omega }
. It is connected to a 3
M
Ω
{\displaystyle M\Omega }
resistor. What power is developed in the 3
M
Ω
{\displaystyle M\Omega }
resistor?
a) 5.01
μ
{\displaystyle \mu }
W.
b) 5.76
μ
{\displaystyle \mu }
W.
c) 6.62
μ
{\displaystyle \mu }
W.
d) 7.62
μ
{\displaystyle \mu }
W.
e) 8.76
μ
{\displaystyle \mu }
W.