93 lines
2.1 KiB
Markdown
93 lines
2.1 KiB
Markdown
T5C – Capacitance and inductance terminology and units; Radio frequency definition and units; Impedance definition and units; Calculating power
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- [[T5C01]] (D)
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What describes the ability to store energy in an electric field? #card
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- A. Inductance
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- B. Resistance
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- C. Tolerance
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- D. Capacitance
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- [[T5C02]] (A)
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What is the unit of capacitance? #card
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- A. The farad
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- B. The ohm
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- C. The volt
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- D. The henry
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- [[T5C03]] (D)
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What describes the ability to store energy in a magnetic field? #card
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- A. Admittance
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- B. Capacitance
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- C. Resistance
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- D. Inductance
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- [[T5C04]] (C)
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What is the unit of inductance? #card
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- A. The coulomb
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- B. The farad
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- C. The henry
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- D. The ohm
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- [[T5C05]] (D)
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What is the unit of impedance?
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- A. The volt
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- B. The ampere
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- C. The coulomb
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- D. The ohm
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- [[T5C06]] (A)
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What does the abbreviation “RF” mean?
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- A. Radio frequency signals of all types
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- B. The resonant frequency of a tuned circuit
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- C. The real frequency transmitted as opposed to the apparent frequency
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- D. Reflective force in antenna transmission lines
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- [[T5C07]] (D)
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What is the abbreviation for megahertz? #card
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- A. MH
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- B. mh
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- C. Mhz
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- D. MHz
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- [[T5C08]] (A)
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What is the formula used to calculate electrical power (P) in a DC circuit? #card
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- A. P = I E
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- B. P = E / I
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- C. P = E – I
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- D. P = I + E
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- [[T5C09]] (A)
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How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes? #card
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- A. 138 watts
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- B. 0.7 watts
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- C. 23.8 watts
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- D. 3.8 watts
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- [[T5C10]] (B)
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How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes? #card
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- A. 4.8 watts
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- B. 30 watts
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- C. 14.5 watts
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- D. 0.208 watts
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- [[T5C11]] (B)
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How much current is required to deliver 120 watts at a voltage of 12 volts DC? #card
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- A. 0.1 amperes
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- B. 10 amperes
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- C. 12 amperes
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- D. 132 amperes
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- [[T5C12]] (A)
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What is impedance?
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- A. The opposition to AC current flow
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- B. The inverse of resistance
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- C. The Q or Quality Factor of a component
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- D. The power handling capability of a component
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- [[T5C13]] (D)
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What is the abbreviation for kilohertz? #card
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- A. KHZ
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- B. khz
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- C. khZ
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- D. kHz
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