Calculate the current Amplitude, in amps, in a (3.1x10^0) kOhm resistor connected to a 120 V rms AC source. Give your answer to 2 sf.

What is the average power dissipated by a (1.6500x10^2) resistor attached to a (1.05x10^2) V rms ac power supply? Give your answer in the unit of Watt.

A bulb is designed for (2.30x10^2) W at 220 V rms AC (Europe) . What is the power dissipated by this bulb if it is used in a 120 V rms AC (Canada) circuit?

If the magnetic field in a traveling EM wave has a peak value of (1.71x10^1)nT, what is the peak value of the electric field strength?

What is the wavelength, in metres, of an EM wave emitted by an AM radio station at (6.50x10^1) kHz?

Unpolarized light passes through two Polaroids; the axis of one is vertical and that of the other is at (6.20x10^1) ^o to the vertical. What is the ratio of the transmitted light intensity to the original light intensity?

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