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State Ohm's law Ans: V=IXR R=V/I I=V/R If current goes down, what does resistance do? Ans: Reistance goes up If Voltage is CONSTANT and Resistance goes DOWN, what must Current do? Ans: Current HAS to go UP! What is the definition of a short circuit? Ans: Zero resistance. Circuit has high current, and zero resistance. What would cause Current to DECREASE in a circuit, IF Voltage remained CONSTANT? All rights reserved © 2025/ 2026 | Page | 2 Ans: INCREASSE in Resistance What is a Transformer? Ans: An electrical device that transfers energy from one electrical circuit to another by magnetic coupling, aka: Mutal Induction. One set of windings induce a voltage in the other set of windings. What are Transformers used for? Ans: Used to convert between high and low voltages and for impedance transformation. State the Power formula. Ans: P = V X I power equals voltage times current What are air core transformers main use? Ans: Radio frequen

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955 test questions and correct answers latest up

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955 test Questions and Correct Answers/
Latest Update / Already Graded
State Ohm's law

Ans: V=IXR
R=V/I
I=V/R

If current goes down, what does resistance do?

Ans: Reistance goes up

If Voltage is CONSTANT and Resistance goes DOWN, what must
Current do?

Ans: Current HAS to go UP!

What is the definition of a short circuit?

Ans: Zero resistance. Circuit has high current, and zero
resistance.

What would cause Current to DECREASE in a circuit, IF Voltage
remained CONSTANT?

All rights reserved © 2025/ 2026 |

, Page |2

Ans: INCREASSE in Resistance

What is a Transformer?

Ans: An electrical device that transfers energy from one
electrical circuit to another by magnetic coupling, aka: Mutal
Induction. One set of windings induce a voltage in the other set
of windings.

What are Transformers used for?

Ans: Used to convert between high and low voltages and for
impedance transformation.

State the Power formula.

Ans: P = V X I
power equals voltage times current

What are air core transformers main use?

Ans: Radio frequency circuits ABOVE 20kHz

What are iron core transformers main use?

All rights reserved © 2025/ 2026 |

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955 test Questions and Correct Answers/ Latest Update / Already Graded

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