The current in a hair dryer measures 15.0 amps. the resistance of the hair dryer is 8 ohms. what is the voltage? v = i x r

Keywords:

Hair dryer, current, resistance, voltage , Ohm's Law

For this case we have that the current of a hair dryer is 15 Amps, while its resistance is 8 ohms. They ask us to find the voltage of the hair dryer. We have that, by definition, Ohm's Law states that:

Where:

Substituting we have:

Thus, the voltage of the hair dryer is 120 volts.

sonar - device which is used to find the submit submarines, sankalp ship. sonar waves consists of a transmitter and detector which are installed in the observation centre on board of a ship. the ultrasonic waves are sent into the sea at high frequency about 1000 khz in all direction.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia