Question

The magnetic flux through a circuit of resistance R changes by an amount $\Delta \varphi$in time $\Delta$t. Then the total quantity of electric charges Q that passes any point in the circuit during the time$\Delta$t is represented by:-

• A. $Q=\frac{\Delta \varphi }{R}$
• B. $Q=\frac{\Delta \varphi }{\Delta t}$
• C. $Q=R.\frac{\Delta \varphi }{\Delta t}$
• D. $Q=\frac{1}{R}.\frac{\Delta \varphi }{\Delta t}$

Answer 1

The correct option is A $Q=\frac{\Delta \varphi }{R}$

$I=\frac{e}{R}$

$=\frac{1}{R}\left(\frac{\Delta \varphi }{\Delta t}\right)$

$=\frac{\Delta Q}{\Delta t}\Rightarrow Q=\frac{\Delta \varphi }{R}$