The dimensionally correct expression for the resistance R among the following is [P = electric power, I = electric current, t = time, V = voltage and E = electric energy]
- A$R=\sqrt{PI}$
- B$R=\dfrac{E}{I^2t}$
- C$R=\dfrac{V^2}{P}$
- D$R=Vl$
✓ Correct answer: B
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