The Student Room Group

Helpppp

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Part C
Take the faulty

headlamp as lamp A, and the lamp which is affected by this as lamp B.

lamp B 'takes' a greater portion of the voltage in order to overcome its greater resistance. Now taking a greater share of the voltage, it is brighter (P= V^2 / R).

On the other hand, now having the greater resistance, less current flows through B. This means it now has less power (P= I^2 *R).


HOW SHOULD I GO ABOUTT?
PLEASE HELP SOMEONEE

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