Ohm's Law & Circuits

According to Ohm's Law, which of the following statement is correct?

• When Voltage is increased, the Current will decrease

• When the Resistance is increased, the Current will increase

• When Voltage in decreased, the Current will decrease

• When the Resistance is decreased, the Current will decrease

Determine the Current in a circuit that contains a voltage of 58 volts an a resistance of 8 ohms.

• 7.25 Amps

• 0.13 Amps

• 66 Amps

• 50 Amps

Determine the Power required to make a device work properly if it contains 18 ohms of resistance and uses 1.65 Amps of current

• 29.7 Watts

• 49 Watts

• 10.9 Watts

• 19.65 Watts

Determine the total resistance of this circuit.

• 0.54 Ohms

• 18 Ohms

• 1.84 Ohms

• 9 ohms

Determine the total resistance of this circuit

• 50 Ohms

• 0.195 Ohms

• 5.12 Ohms

• 60 Ohms

Which of the following statements are correct for a Series Circuit?

• All Series Circuits contain one path

• When one bulb in a Series Circuit burns out, the rest stay on.

• When an extra resistor is added to a Series Circuit, the total resistance increases

• The Voltage in a Series Circuit is constant through the circuit

Which of the following statements are correct for a Parallel Circuit?

• All Parallel Circuits contain more than 1 path

• When an extra resistor is added to a Parallel Circuit, the total resistance decreases

• The current in a Parallel Circuit is constant

• The Voltage in a Parallel Circuit is identical in each branch

Which of the following correctly shows the Total Resistance of a Series Circuit?

• Rt=R1 + R2 + R3 ...

• Rt= R1 x R2 x R3 ...

• Rt= 1/R1 + 1/R2 + 1/R3 ...

• Rt= 1/R1 x 1/R2 x 1/R3 ...

What two properties determine the Period of a regular Pendulum?

• Mass

• Gravity

• Length

• Shape

Which of the following statements is correct when dealing with Pendulums?

• Increasing the Length will give you a larger period

• Increasing the Length will give you a smaller period

• Decreasing the Length will give you a smaller period

• Decreasing the Length will give you a larger period