Ohm's Law

(1) According to ohm’s law ,current is equal to the voltage divided by the

_____________________.

• Inductance

• Capacitance

• Resistance

• Impedance

Which equation would you use to solve for voltage?

• V = I/R

• V = P x R

• V = C x I

• V = I x R

If the current in the electrical circuit is constant, what will happen to the voltage if the resistance is increased?

• The voltage will decrease

• The voltage will increase

• The voltage will remain constant

• The voltage would be zero

(1) An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately _____ohms

• 31.4

• 3.1

• 38.5

• 385

(1) If there are 7 amperes flowing through a 3 ohms resistor, what will the voltage across the resistor?

• 21

• 17

• 10

• 2.5

A current of 0.5 A flows through a wire with resistance of 15 ohms .What would be the voltage across the ends of the wire?

• 15

• 7.5

• 7

• 0.5

A cell of 12 V is connected to a 24 ohms bulb, Calculate the current flowing through the bulb when it is lit?

• 2

• 2.5

• 1.5

• 0.5

Which part of the circuit changes electrical energy to another form of energy

• Switch

• Light

• Conductors

• Load

Based on ohm's law when current flows in a circuit it is inversely proportional to the resistance in the circuit

• True

• False

A switch controlled the flow of the voltage in a circuit

• True

• False