Electronics

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. For a parallel circuit with two identical resistors, the total current is:
  • A. Half of the current through one resistor
  • B. Equal to the current through one resistor
  • C. Twice the current through one resistor
  • D. Zero
Q. How does increasing resistance in an RC circuit affect the time response?
  • A. Increases time constant
  • B. Decreases time constant
  • C. No effect
  • D. Increases voltage
Q. How does temperature affect the performance of a diode in a series-parallel circuit?
  • A. Increases forward voltage drop
  • B. Decreases reverse leakage current
  • C. Increases reverse breakdown voltage
  • D. Decreases forward current
Q. How does the current through each component in a parallel circuit relate to the total current?
  • A. It is equal to the total current
  • B. It is less than the total current
  • C. It is greater than the total current
  • D. It is independent of the total current
Q. How does the time response of an RL circuit differ from that of an RC circuit?
  • A. RL is faster than RC
  • B. RC is faster than RL
  • C. Both are the same
  • D. Depends on values of R and L
Q. How does the total resistance change in a series-parallel circuit when more resistors are added in parallel?
  • A. Total resistance increases
  • B. Total resistance decreases
  • C. Total resistance remains the same
  • D. Total resistance becomes infinite
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. If two resistors are connected in parallel, how do you calculate the total resistance?
  • A. R_total = R1 + R2
  • B. R_total = 1 / (1/R1 + 1/R2)
  • C. R_total = R1 * R2
  • D. R_total = R1 - R2
Q. If two resistors are connected in parallel, the total resistance is:
  • A. Greater than the smallest resistor
  • B. Equal to the smallest resistor
  • C. Less than the smallest resistor
  • D. Equal to the sum of the resistances
Q. In a basic inverting op-amp circuit, if Rf is 10kΩ and Rin is 1kΩ, what is the gain?
  • A. -10
  • B. -1
  • C. 1
  • D. 10
Q. In a basic inverting op-amp configuration, what is the relationship between the input and output voltages?
  • A. Vout = Vin
  • B. Vout = -Vin
  • C. Vout = Vin/2
  • D. Vout = Vin + 1
Q. In a basic summing amplifier configuration, what does the output voltage depend on?
  • A. The sum of the input voltages
  • B. The product of the input voltages
  • C. The difference of the input voltages
  • D. The average of the input voltages
Q. In a bipolar junction transistor (BJT), what are the three regions called?
  • A. Emitter, Base, Collector
  • B. Source, Gate, Drain
  • C. Anode, Cathode, Gate
  • D. Source, Base, Collector
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 BJT, what is the region called when it is biased in the active mode?
  • A. Cut-off
  • B. Saturation
  • C. Active
  • D. Reverse
Q. In a BJT, what is the role of the base terminal?
  • A. To collect charge carriers
  • B. To control the current flow
  • C. To provide power
  • D. To dissipate heat
Q. In a BJT, which terminal is the control terminal?
  • A. Emitter
  • B. Collector
  • C. Base
  • D. Gate
Q. In a capacitor, what does the term 'capacitance' refer to?
  • A. The ability to resist current
  • B. The ability to store charge per unit voltage
  • C. The ability to conduct electricity
  • D. The ability to dissipate heat
Q. In a circuit with an inductor, what is the time constant defined as?
  • A. L/R
  • B. R/L
  • C. L*R
  • D. R+L
Q. In a common emitter BJT configuration, what is the phase relationship between the input and output signals?
  • A. In phase
  • B. Out of phase
  • C. No phase relationship
  • D. Dependent on frequency
Q. In a common-emitter BJT configuration, what is the phase relationship between input and output?
  • A. In phase
  • B. Out of phase
  • C. No phase relationship
  • D. Dependent on frequency
Q. In a common-source FET amplifier configuration, what is the phase relationship between the input and output signals?
  • A. In phase
  • B. Out of phase
  • C. No phase relationship
  • D. Dependent on frequency
Q. In a comparator circuit, what happens when the non-inverting input voltage exceeds the inverting input voltage?
  • A. The output goes low
  • B. The output goes high
  • C. The output remains unchanged
  • D. The output oscillates
Q. In a differential amplifier configuration, what does the operational amplifier amplify?
  • A. The average of the input signals
  • B. The difference between the input signals
  • C. The sum of the input signals
  • D. The square of the input signals
Q. In a differential amplifier configuration, what is the output voltage proportional to?
  • A. The difference between two input voltages
  • B. The sum of two input voltages
  • C. The average of two input voltages
  • D. The product of two input voltages
Q. In a differential amplifier, what is the significance of the resistor values?
  • A. They determine the input impedance
  • B. They set the common-mode gain
  • C. They affect the differential gain
  • D. They stabilize the output voltage
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 first-order RC circuit, what happens to the voltage across the capacitor after 5 time constants?
  • A. It is at 100% of V0
  • B. It is at 63.2% of V0
  • C. It is at 86.5% of V0
  • D. It is at 50% of V0
Showing 1 to 30 of 432 (15 Pages)
Soulshift Feedback ×

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

Not likely Very likely