The photovoltaic cell produces an EMF when exposed to:

An EMF is produced in a generator by:

When an electric current flows through an LED, electrons release energy as photons which generate:

Electric current flowing in a solid conductor will result in an electromagnetic field that can be used for motive power applications. If the value of current is increased, the strength of the magnetic field will:

An electric current will produce a chemical reaction if two dissimilar metals are placed in:

When using a wattmeter to measure the power consumed by a load, the potential coil of the wattmeter must be connected:

When using a wattmeter to measure the power consumed by a load, the current coil of the wattmeter must be connected:

Two resistors connected in series have the following values…  

R₁ = 20 Ω  

R₂ = 40 Ω

If 120 volts is applied to the circuit, the voltage across R₂ would be:

An electric iron has a power rating of 1150W at 230V. What is the resistance of the element?

R= 

The graph below shows the current that will flow through a resistive load when different values of voltage are applied.

Determine the current when the applied voltage is 5 volts.

I=