In a circuit containing a pure resistor connected to an $AC$ source,
- AVoltage leads the current by $90^\circ$
- BCurrent leads the voltage by $90^\circ$
- CVoltage and current are in same phase with each other
- DCurrent leads the voltage by $180^\circ$
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In an a.c. circuit with pure capacitance $C$ and a.c. source $E = E_0 \sin \omega t$, the equation of instantaneous current is given by
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$A$ capacitor '$C$' is connected across a $DC$ source,the reactance of the capacitance will be . . . . . . .
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