Ohm’s Law in Series and Parallel Circuits (Grade 11 NSC Matric Physical Sciences): Quizzes

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Ohm's Law in Series and Parallel Circuits
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What is the key difference between series and parallel circuits?

Number of current paths available

How do you calculate equivalent resistance for resistors in series?

Add all individual resistances

What formula is used for equivalent resistance in parallel circuits?

1Rp=1R1+1R2+...\frac{1}{R_p} = \frac{1}{R_1} + \frac{1}{R_2} + ...

In parallel circuits, how does equivalent resistance compare to individual resistors?

Always smaller than the smallest resistor

How does current behave in a series circuit?

Same throughout all components

How does voltage behave across resistors in a parallel circuit?

Same across all components

How does voltage behave across resistors in a series circuit?

Adds up: V=V1+V2+V3V = V_1 + V_2 + V_3

Calculate RsR_s for three series resistors: 3 Ω3\,\Omega, 10 Ω10\,\Omega, and 5 Ω5\,\Omega.

18 Ω18\,\Omega

Two resistors 2 Ω2\,\Omega and 4 Ω4\,\Omega are in parallel. Find RpR_p.

1.33 Ω1.33\,\Omega

A series circuit has V=12 VV=12\,V, R1=2 ΩR_1=2\,\Omega, R2=4 ΩR_2=4\,\Omega. Find current II.

2 A2\,A

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