WBJEE · Physics

Current electricity

5 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 5 questions

Two resistors of $12 Ω$ and $4 Ω$ are connected in parallel. What is the equivalent resistance (in $Ω$ )?
Two resistors of $20 Ω$ and $5 Ω$ are connected in parallel. What is the equivalent resistance (in $Ω$ )?
In a metre bridge, an unknown resistance $X$ is in the left gap and $12 Ω$ is in the right gap. The balance point is at $60 cm$ from the left end. When another resistor $Y$ is connected…
Two resistors of $6 Ω$ and $3 Ω$ are connected in parallel. What is the equivalent resistance (in $Ω$ )?
Two resistors of $10 Ω$ and $15 Ω$ are connected in parallel. What is the equivalent resistance (in $Ω$ )?

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