Resistor 1 has twice the resistance of resistor 2. They are connected in parallel to a battery. The ratio of the thermal energy dissipation by 1 to that by 2 is:
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temdan2001 6 months ago
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The ratio of the thermal energy dissipation by resistor 1 to that by resistor 2 will be  1 : 2

### The Resistance of a Resistor

Resistors can be arranged in series or parallel

The resistors arranged in parallel will have the same potential difference across each every one of them.

Given that Resistor 1 has twice the resistance of resistor 2. They are connected in parallel to a battery. That is = 2 Power P = lV

from Ohm's law

V = lR

Make l the subject of formula

l = V/R

Substitute l into power formula

P = / R

For the Resistor 1,

P = / 2 For the Resistor 2

P = / The ratio of the thermal energy dissipation by 1 to that by 2 will be /2 x / The and the will cancel out.

Therefore, the ratio of the thermal energy dissipation by 1 to that by 2 will be  1:2