The Student Room Group

Combination circuit

A power source used in the workshop has an EMF of 110V. When a load is applied the PD at the terminals drops to 95V when a current of 3A is drawn. Calculate the internal resistance of the power source in a combination circuit
V = E - Ir
95 = 110 - 3r
3r = 110 - 95
3r = 15
r = 5 Ohms
R u in First Year for A-levels? Do u do a level physics?
Cause I'm in the first year doing physics, double maths and chem
Reply 3
Original post by intishar24082007
R u in First Year for A-levels? Do u do a level physics?
Cause I'm in the first year doing physics, double maths and chem

Yes mate, home studying tho. So trying to juggle this course work and work nightmare
Original post by Adam thomas
Yes mate, home studying tho. So trying to juggle this course work and work nightmare

What course work is it?
(edited 2 months ago)
Original post by Adam thomas
A power source used in the workshop has an EMF of 110V. When a load is applied the PD at the terminals drops to 95V when a current of 3A is drawn. Calculate the internal resistance of the power source in a combination circuit

Btw bro was this correct
Reply 6
Original post by intishar24082007
Btw bro was this correct

Yes mate all
Sorted ✔️

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