Explore topic-wise MCQs in Engineering.

Four amperes of current are measured through a 24 resistor connected across a voltage source. How much voltage does the source produce?

Fourteen milliamperes can be expressed as

When the frequency of the voltage applied to a series RC circuit is decreased, the impedance

If the rms voltage drop across a 15 k resistor is 16 V, the peak current through the resistor is

Find the node voltage V_A.

An inductance of 0.08 H is larger than

Electrons in the outer orbit are called

Which of the following is not a type of energy source?

A thermistor is a type of

For 12 V and 40 mA, the power is

The conductance of an 8 ohm resistance is

When placed close together, two positively charged materials will

A 220 resistor dissipates 3 W. The voltage is

A 3.3 k resistor dissipates 0.25 W. The current is

In 40 kW, there are

If you used 600 W of power for 60 h, you have used

A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is

A 15 V source is connected across a 12 resistor. How much energy is used in three minutes?

If you used 400 W of power for 30 h, you have used

If it takes 400 ms to use 12,000 J of energy, the power is

The total resistance of a parallel circuit is 50 . If the total current is 120 mA, the current through the 270 resistor that makes up part of the parallel circuit is approximately

When an additional resistor is connected across an existing parallel circuit, the total resistance

When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is

In 0.025 W, there are

The currents into a junction flow along two paths. One current is 4 A and the other is 3 A. The total current out of the junction is

A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is

The colored bands for a 4,700 ohm resistor with a ten percent tolerance are

When the current is 2.5 A, how many coulombs pass a point in 0.2 s?

An ammeter is an electrical instrument used to measure

There is a total of 800 mA of current into four parallel resistors. The currents through three of the resistors are 40 mA, 70 mA, and 200 mA. The current through the fourth resistor is

Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is

If one of the resistors in a parallel circuit is removed, the total resistance

In a five-branch parallel circuit, there are 12 mA of current in each branch. If one of the branches opens, the current in each of the other four branches is

The following currents are measured in the same direction in a three-branch parallel circuit: 200 mA, 340 mA, and 700 mA. The value of the current into the junction of these branches is

A sudden increase in the total current into a parallel circuit may indicate

The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

Four resistors of equal value are connected in parallel. If the total voltage is 15 V and the total resistance is 600 , the current through each parallel resistor is

Three lights are connected in parallel across a 120 volt source. If one light burns out,

A set of Christmas tree lights is connected in parallel across a 110 V source. The filament of each light bulb is 1.8 k. The current through each bulb is approximately

The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is

How much continuous current can be drawn from a 60 Ah battery for 14 h?

When the current through a 12 k resistor is 8 mA, the power is

Four 8 speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakers

A 75 load uses 2 W of power. The output voltage of the power supply is approximately

If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?

A neutral atom with an atomic number of five has how many electrons?

The current in a given circuit is not to exceed 24 A. Which value of fuse is best?

A multimeter measures

In a three-phase system, the voltages are separated by

In a three-phase system, when the loads are perfectly balanced, the neutral current is