# Question: The voltage across a 10 resistor varies as V

The voltage across a 10-Ω resistor varies as V = (170 V) sin (100 πt).

(a) Is the current in the resistor (1) in phase with the voltage, (2) ahead of the voltage by 90o, or (3) lagging behind the voltage by 90o?

(b) Write the expression for the current in the resistor as a function of time and determine the voltage frequency.

(a) Is the current in the resistor (1) in phase with the voltage, (2) ahead of the voltage by 90o, or (3) lagging behind the voltage by 90o?

(b) Write the expression for the current in the resistor as a function of time and determine the voltage frequency.

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