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Course: Electromagnetism (Essentials) - Class 12th > Unit 6

Lesson 3: Why can birds sit on a high voltage wire?
Science
Electromagnetism (Essentials) - Class 12th
How many toy batteries would it take to start a real car?
Why can birds sit on a high voltage wire?
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Finding currents and voltages (pure circuits)

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Problem

A circuit diagram is shown below.
The circuit contains two resistors, R1=48 Ω and R2=12 Ω, in parallel, connected to a battery of voltage Vcell=24 V.
Find the current, I1, that flows through R1.
I1=
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
A