Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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T5D01 What formula is used to calculate current in
a circuit?
a. | Current (I) equals voltage (E) multiplied by resistance
(R) | c. | Current (I) equals voltage (E) added to resistance
(R) | b. | Current (I) equals voltage (E) divided by resistance
(R) | d. | Current (I) equals voltage (E) minus resistance
(R) |
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2.
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T5D02 What formula is used to calculate
voltage in a circuit?
a. | Voltage (E) equals current (I) multiplied by resistance
(R) | c. | Voltage (E) equals current (I) added to resistance
(R) | b. | Voltage (E) equals current (I) divided by resistance
(R) | d. | Voltage (E) equals current (I) minus resistance
(R) |
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3.
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T5D03 What formula is used to calculate resistance
in a circuit?
a. | Resistance (R) equals voltage (E) multiplied by current
(I) | c. | Resistance (R) equals voltage (E) added to current
(!) | b. | Resistance (R) equals voltage (E) divided by current
(I) | d. | Resistance (R) equals voltage (E) minus current
(I) |
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4.
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T5D04 What is the resistance of a circuit in which
a current of 3 amperes flows through a resistor connected to 90 volts?
a. | 3 ohms | c. | 93
ohms | b. | 30 ohms | d. | 270
ohms |
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5.
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T5D05 What is the resistance in a circuit for
which the applied voltage is 12 volts and the current flow is 1.5 amperes?
a. | 18 ohms | c. | 8
ohms | b. | 0.125 ohms | d. | 13.5
ohms |
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6.
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T5D06 What is the resistance of a circuit
that draws 4 amperes from a 12-volt source?
a. | 3 ohms | c. | 48
ohms | b. | 16 ohms | d. | 8
ohms |
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7.
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T5D07 What is the current in a circuit with
an applied voltage of 120 volts and a resistance of 80 ohms?
a. | 9600 amperes | c. | 0.667
amperes | b. | 200 amperes | d. | 1.5
amperes |
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8.
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T5D08 What is the current through a 100-ohm
resistor connected across 200 volts?
a. | 20,000 amperes | c. | 2
amperes | b. | 0.5 amperes | d. | 100
amperes |
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9.
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T5D09 What is the current through a 24-ohm
resistor connected across 240 volts?
a. | 24,000 amperes | c. | 10
amperes | b. | 0.1 amperes | d. | 216
amperes |
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10.
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T5D10 What is the voltage across a 2-ohm
resistor if a current of 0.5 amperes flows through it?
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a. | 1 volt | c. | 2.5
volts | b. | 0.25 volts | d. | 1.5
volts |
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11.
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T5D11 What is the voltage across a 10-ohm resistor
if a current of 1 ampere flows through it?
a. | 1 volt | c. | 11
volts | b. | 10 volts | d. | 9
volts |
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12.
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T5D12 What is the voltage across a 10-ohm resistor
if a current of 2 amperes flows through it?
a. | 8 volts | c. | 12
volts | b. | 0.2 volts | d. | 20
volts |
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13.
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T5D13 What happens to current at the junction of
two components in series?
a. | It divides equally between them | c. | It divides based on the on the value of the
components | b. | It is
unchanged | d. | The current in the second component is
zero |
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14.
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T5D14 What happens to current at the junction
of two components in parallel?
a. | It divides between them dependent on the value of the
components | c. | Its value doubles | b. | It is the same in both components | d. | Its value is
halved |
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15.
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T5D15 What is the voltage across each of
two components in series v/ith a voltage source?
a. | The same voltage as the source | c. | It is determined by the type and value of the
components | b. | Half the source
voltage | d. | Twice the source voltage |
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16.
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T5D16 What is the voltage across each of two
components in parallel with a voltage source?
a. | It is determined by the type and value of the
components | c. | Twice the source voltage | b. | Half the source voltage | d. | The same voltage
as the source |
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