Electric Circuits Answers

A) Your microwave oven is 64% efficient. How much electrical energy must it use to produce 900 J of radiant energy? Show all your work.

Calculate The total current of 12 voltage and 4 ohms connected in parallel

Calculate the total resistance of 12 voltage and 4 ohms connected in parallel

The temperature coefficient of copper is 0.00427/°C. The resistance of the coil is 8.82 ohms

at 24°.C. Determine its resistance at 0°.C and 42°.C.

What potential difference must be applied to cause a current of 2.5 A in a circuit to have a resistance of 53 ohms?

2 meter of resistance wire of Cross section .5mm² has a resistance of 2.2ohm c calculate the resistivity of the meter

 The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in

diameter is 0.830 ohms at

20° C. What is the resistivity of the copper at this temperature?

A current of 3A flows for 50hr through a 6ohm resistor find the energy consumed by the resistor

a toaster, operating on a household circuit (v=120 v) shows 10A of current on an ammeter. what is the power rating of the toaster?

A disk of radius 1.20cm. It has a charged of -6.0nC spread uniformly over the said disk. Find the magnitude and direction of the electric field this disk produces at point A on the axis of the disk a distance of 2.0cm from its center