What is the voltage at the ends of the filament of the overhead projector lamp if the current

What is the voltage at the ends of the filament of the overhead projector lamp if the current in the lamp is 6.3 A and the resistance is 3.80 m?

Given:

I = 6.3 Amperes – current in the overhead projector lamp;

R = 3.8 Ohm – resistance of the overhead projector lamp.

It is required to determine U (Volt) – the voltage at the ends of the filament of the overhead projector.

To determine the voltage, you must use the following formula (according to Ohm’s law):

I = U / R, from here we find that:

U = R * I = 6.3 * 3.8 = 23.94 Volts (approximately 24 Volts).

Answer: The voltage at the ends of the overhead projector filament will be 24 volts.