Ohms Law

Q. In a series circuit, if one resistor fails open, what happens to the current in the circuit?
  • A. It increases
  • B. It decreases
  • C. It becomes zero
  • D. It remains the same
Q. In a series circuit, if one resistor is removed, what happens to the total resistance?
  • A. It increases.
  • B. It decreases.
  • C. It remains the same.
  • D. It becomes zero.
Q. What does Ohm's Law state?
  • A. Voltage is directly proportional to current
  • B. Current is directly proportional to resistance
  • C. Resistance is directly proportional to voltage
  • D. Voltage is inversely proportional to current
Q. What happens to the current in a circuit if the resistance is increased while the voltage remains constant?
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It becomes zero
Q. What happens to the current in a circuit if the voltage is tripled and the resistance remains constant?
  • A. It triples
  • B. It doubles
  • C. It halves
  • D. It remains the same
Q. What happens to the resistance of a conductor if its temperature increases?
  • A. It decreases.
  • B. It increases.
  • C. It remains the same.
  • D. It becomes zero.
Q. What happens to the total resistance in a series circuit when more resistors are added?
  • A. It decreases.
  • B. It remains the same.
  • C. It increases.
  • D. It becomes zero.
Q. What is the equivalent resistance of two resistors, 6 ohms and 3 ohms, connected in series?
  • A. 2 ohms
  • B. 3 ohms
  • C. 9 ohms
  • D. 18 ohms
Q. What is the equivalent resistance of two resistors, 6Ω and 3Ω, connected in series?
  • A.
  • B.
  • C.
  • D. 18Ω
Q. What is the relationship between voltage, current, and resistance according to Ohm's Law?
  • A. V = I * R
  • B. V = I / R
  • C. V = R / I
  • D. V = I + R
Q. What is the relationship between voltage, current, and resistance in a circuit according to Ohm's Law?
  • A. V = I + R
  • B. V = I - R
  • C. V = I * R
  • D. V = I / R
Q. What is the unit of resistance in the SI system?
  • A. Volt
  • B. Ampere
  • C. Ohm
  • D. Watt
Q. What is the unit of resistance?
  • A. Volt
  • B. Ampere
  • C. Ohm
  • D. Watt
Q. Which of the following materials is typically a good conductor of electricity?
  • A. Rubber
  • B. Copper
  • C. Glass
  • D. Wood
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