Dc Theory Level 2 Lesson 2

Question: The resistance of the Connecting wires in a series circuit is generally________________the resistance of the load

Answer: Less than

Question: The formula for determining the total series resistance in a circuit is Rt=R1+R2+R3……….

Answer: True

Question: When resistors are connected in series, their values are______________to find the total circuit resistance

Answer: Added

Question: A lamp Connected in series with other components in an electric circuit will not contribute to the total resistance of the circuit

Answer: False

Question: In a series circuit, decreasing the size of the circuit conductor would_______________ the total resistance of the circuit

Answer: Increase

Question: A switch is connected in a series circuit. If the contacts on the switch I opened, the resistance of the circuit(including the switch) will__________

Answer: Increase (to infinity)

Question: Using Ohm’s Law,What is the equation for total resistance when the total voltage and total current are known

Answer: Rt=Et/It

Question: The purpose of the “O adjust” knob on an analog meter is to allow the meter to be adjusted to compensate for test lead resistance and battery voltage level when making resistance measurements

Answer: True

Question: It is not necessary to disconnect the power from the circuit before taking resistance measurements

Answer: False

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