Electric Circuits Answers

The rate at which charge flows through a series circuit is inversely proportional to the amount of overall resistance in the circuit. Based on the results in Experiment 2, which one of the following rules accurately describes the effect of the number of bulbs upon overall current and overall resistance?

a. Increasing the number of bulbs will cause both the current and the resistance to increase. b. Increasing the number of bulbs will cause both the current and the resistance to decrease. c. Increasing the number of bulbs will cause the current to increase and the resistance to

decrease.

d. Increasing the number of bulbs will cause the current to decrease and the resistance to

increase.

The rate at which charge flows through a series circuit is inversely proportional to the amount of overall resistance in the circuit. Based on the results in Experiment 2, which one of the following rules accurately describes the effect of the number of bulbs upon overall current and overall resistance?

a. Increasing the number of bulbs will cause both the current and the resistance to increase. b. Increasing the number of bulbs will cause both the current and the resistance to decrease. c. Increasing the number of bulbs will cause the current to increase and the resistance to

decrease.

d. Increasing the number of bulbs will cause the current to decrease and the resistance to

increase.

The electron drift arises due to the force experienced by electrons in the electric field inside the conductor.

But force should cause acceleration.

Why then do the electrons aquire a steady average drift speed?

In Amplitude modulation, Vestigal Side Band (VSB) is one of the technique used to overcome its limitations in terms of power and bandwidth. With this in mind; a. Explain how a VSB signal is generated in the transmitter. b. Draw and compare the frequency spectrum of the original message signal and the spectrum of the VSB signal in a frequency domain. c. Show how the bandwidth of VSB is calculated by writing the equation. d. Give one application of VSB in broadcasting.

A modulating signal m(t)=10cos(2π×103t) is amplitude modulated with a carrier signal c(t)=50cos(2π×105t).

Find the modulation index, the carrier power, and the power required for transmitting AM wave.

What color code corresponds to a resistance of 234x105±10% with a temperature coefficient of resistance equal to 25x10-6/Co?

a current of 3A flows past a particular point in a circuit. calculate the charge that passes through if the time that the current flows for is 1 hour

a current of 3A flows past a particular point in a circuit. calculate the charge that passes through if the time that the current flows for is 1 minute

a current of 3A flows past a particular point in a circuit. calculate the charge that passes through if the time that the current flows for is 5s

a current of 3A flows past a particular point in a circuit. calculate the charge that passes if the time that the current flow is for 1s