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WorksheetsElectrical Energy, Capacitance and Kirchoff's Law
Total questions: 10
Worksheet time: 20mins
The difference in electrical potential energy between two places is called …………...
resistance
friction
induction
voltage
Two, point charges 𝑞1 = +5.00 𝑛𝐶 and 𝑞2 = − 3.00 𝑛𝐶 are separated by 35.0 cm.
What is the potential energy of the pair of charges?
-3.85 X 10-7 J
+3.85 X 10-7 J
+1.29 x 102 J
-7.71 x 101 J
Three charges are placed at the corners of an equilateral triangle of side 2.00 𝑚𝑚 as shown below. Calculate the electric potential energy associated with this configuration.
8.9 x 10-4 J
4.5 x 10-4 J
8.9 x 10-6 J
2.7 x 10-4 J
Four capacitors are connected in a circuit as shown below. If the voltage across the battery is 30V, then:
a) what is the total charge flowing through the circuit?
b) what is the charge flowing through the first capacitor on the left? (Think about the rules used in series and parallel circuits for charge)
a) 200 Micro Coulombs
b) 200 Micro Coulombs
a) 66.7 Micro Coulombs
b) 66.7 Micro Coulombs
a) 200 Micro Coulombs
b) 66.7 Micro Coulombs
a) 66.7 Micro Coulombs
b) 200 Micro Coulombs
Three capacitors of capacitances 3μF, 9 μF and
18 μF are first connected in series and then in parallel. The ratio of the net capacitances in series to that in parallel is _____.
1:1
1:3
1:15
3:1
15:1
Which of the following equations is/are a consequence of Kirchhoff’s rules, when applied to the figure below.
I only
II only
III only
I and II only
II and III only
Which of the following equations represent the current I in the circuit?
Consider the circuit shown in the figure below.
a) Apply Kirchhoff’s law to 𝑙𝑜𝑜𝑝 1 to find the current 𝑖1.
b) Apply Kirchhoff’s law to 𝑙𝑜𝑜𝑝 2 to find the current 𝑖2.
c) Find the current i3.
a) i1 = -1/2A
b) i2 = -1/3A
c) i3 = -5/6 A
a) i1 = -3/2A
b) i2 = -1/3A
c) i3 = -5/6 A
a) i1 = -1/2A
b) i2 = -1/3A
c) i3 = -1/6 A
a) i1 = -1/3A
b) i2 = -1/2A
c) i3 = -5/6 A
