3 resistors, R1, R2 and R3 are attached in parallel across a 6V cell with resistances 3, 4 and 5 Ohms respectively. Calculate the current across each resistor.

First off draw the circuit. The voltage across each resistor is equal (i.e. 6V). From here we just have to use Ohm's law (V = I x R) to calculate the currents across each resistor. This gives us:
R1; 6V = I x 3 Ohms; I = 2A
R1; 6V = I x 4 Ohms; I = 1.5A
R1; 6V = I x 5 Ohms; I = 1.2A

MP
Answered by Marcus P. Physics tutor

2476 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

If a ball is launched at ground level at a velocity v and angle θ, find an expression for it's height at horizontal distance x.


What is "half-life"?


Describe an experiment, using a pendulum, which can be conducted to investigate g, acceleration due to gravity.


When catching a ball, a cricketer moves his hands for a short distance in the direction of travel of the ball as it makes contact with his hands. Explain why this technique results in less force being exerted on the cricketer's hands


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences