Ohm's Law

Download Q&A
Q. According to Ohm's Law, if the resistance in a circuit is doubled while keeping the voltage constant, what happens to the current?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It becomes zero
Q. For a FET, what is the effect of increasing gate voltage on the drain current?
  • A. Drain current decreases
  • B. Drain current remains constant
  • C. Drain current increases
  • D. Drain current becomes zero
Q. If a diode is forward-biased, what is the expected behavior according to Ohm's Law?
  • A. It behaves like an open circuit
  • B. It behaves like a short circuit
  • C. It has infinite resistance
  • D. It has zero voltage drop
Q. In a BJT, if the base current is increased, what happens to the collector current according to Ohm's Law?
  • A. It decreases
  • B. It remains constant
  • C. It increases
  • D. It becomes zero
Q. In a FET, what does the gate voltage control?
  • A. The drain current
  • B. The source voltage
  • C. The gate current
  • D. The output power
Q. In a rectifier circuit, what happens to the output voltage when the input AC voltage is at its peak?
  • A. Output voltage is zero
  • B. Output voltage is equal to the peak input voltage
  • C. Output voltage is half the peak input voltage
  • D. Output voltage is negative
Q. In a small-signal model, what does the transconductance (gm) represent?
  • A. The change in output voltage per change in input current
  • B. The change in output current per change in input voltage
  • C. The change in input voltage per change in output current
  • D. The change in input current per change in output voltage
Q. What is the effect of increasing resistance in a circuit while keeping voltage constant according to Ohm's Law?
  • A. Current increases
  • B. Current decreases
  • C. Voltage increases
  • D. Power increases
Q. What is the formula for calculating the total resistance in a series circuit?
  • A. R_total = R1 + R2 + R3
  • B. R_total = R1 x R2 x R3
  • C. R_total = R1 / R2 / R3
  • D. R_total = R1 - R2 - R3
Q. What is the output voltage of an ideal op-amp when the input voltage is zero?
  • A. Zero volts
  • B. Equal to the supply voltage
  • C. Equal to the input voltage
  • D. Infinite volts
Q. What is the primary function of an operational amplifier (op-amp) in a circuit?
  • A. To amplify voltage
  • B. To rectify current
  • C. To switch signals
  • D. To store energy
Q. What is the typical voltage drop across a silicon diode when it is conducting?
  • A. 0.1V
  • B. 0.3V
  • C. 0.7V
  • D. 1.5V
Q. What is the unit of resistance in Ohm's Law?
  • A. Volts
  • B. Amperes
  • C. Ohms
  • D. Watts
Q. What type of rectifier allows current to flow in only one direction?
  • A. Zener rectifier
  • B. Half-wave rectifier
  • C. Full-wave rectifier
  • D. Bridge rectifier
Showing 1 to 14 of 14 (1 Pages)
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely