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Electric Currents

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Chapter 18 and 19
Problem Solving Questions
Important Formula
Ch- 19
1. 650Ω and 1800 Ω resistors are connected in series
with a 12-V battery. What is the voltage across the
1800 Ω resistor?
Ch- 19
1. Two 45 Ω light bulbs and one 65Ω light bulb are
connected in series.
a. What is the total resistance of the circuit?
b. What is the total resistance if all light bulbs are
wired in parallel?
Chapter 19
What is the total resistance of three resistors,
100Ω, 10Ω , and 1Ω , in parallel?
Chapter 19
What is the total current I flowing through a
system with 2 resistors in parallel with
resistances of 2Ω and 5Ω and a battery with
voltage difference of 10V?
Chapter 19
Calculate the total resistance between the points
A and B.
Chapter 19
Find current I in the circuit below and the current
passing through each of the resistors in the
circuit.
Chapter 19
The
circuit
shown
contains both series and
parallel combinations of
resistors.What is the total
current in the circuit
shown?
Chapter 18
What is the resistance of a resistor if the current
going through it is 2A and the voltage across it it
is 10 V ?
Chapter 18
What is the voltage across a resistor with a
resistance of 10Ω that has a current of 20A
going through it?
Chapter 18
What is the current through a resistor if the
resistor has a resistance of 40Ω
and the voltage across the resistor is 60V?
Chapter 18
What is the power of a circuit that contains a 20Ω
resistor and 4 amps of current?
Chapter 18
A 6V battery delivers 0.5A of current. What is the
power rating of the circuit?
Please check your Physics copy book notes. Questions
similar to these have been solved in class. These are
practice questions. If you have any doubts Please send an
email with the picture of your solved question.
All the best !
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