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22 Cards in this Set
- Front
- Back
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The Unit of Current is:
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Watt
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The Unit of Voltage is:
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Volt
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The Unit of Resistance is:
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ohm
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Hertz is the unit of:
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Frequency
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15,000 W is the same as:
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15kW
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The quantity 4.7 X 10E3 is the same as:
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4700
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The quantity 56 X 10E-3 is the same as:
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0.560
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The number 3,300,000 can be expressed in engineering notation as:
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3300 X 10E3 or 3.3 X 10E6
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Ten milliamperes can be expressed by as:
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10 mA
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Five Thousand volts can be exressed as:
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5000 V or 5 kV
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Twenty million ohms can be expressed as:
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20 M(ohms symbol)
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A neutral atom with an atomic number of three has how many electrons?
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3
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Electron orbits are called:
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Shells
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Materials in which there is no current when voltage is apllied are called.
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Insulators
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When placed close together, a positively charged material and a negatively charged material will.
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Attract
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The charge on a single electron is:
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1.6 X 10E-19
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Potential difference is another term for:
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Voltage
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The unit of energy is the:
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Joule
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Electrical current is defined as:
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the rate of flow of free electrons
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There is no current in a circuit when:
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the switch is open or there is no voltage
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The primary purpose of a resistor is to:
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Limit Current
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Potentiometers and rheostats are types of:
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Variable Resistors
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