Electric Circuits Answers

Form an AM DSBFC envelope with a 40V positive maximum voltage and a 10V positive minimum voltage, determine (a) the unmodulated carrier amplitude, (b) the peak change in amplitude of the modulated wave, and (c) coefficient of modulation and percent modulation.

Two filament lamp A and B takes 0.8Ampere respectively when connected across 110 volt supply.Determine the value of current when they are connected in series

An electric lamp whose resistance, when in use, is 2 Ω is connected to the terminals of a dry cell whose e.m.f. is 1.5 V. If the current through the lamp is 0.5 A, calculate the internal resistance of the cell and the potential difference between the terminals of the lamp. If two such cells are connected in parallel, find the resistance which must be connected in series with the arrangement to keep the current the same as before.

Three resistors R1, R2 and R3 are connected in series-parallel with R1 in series with the parallel combination of R2 and R3. The whole combination is connected across a 120 V DC source. Resistors R1, R2 and R3 take 750 W, 250 W and 200 W respectively. Calculate the resistance R2.

Radio wave travel at the speed of light. Radio station KSTX broadcast at a frequency of 89.1 MHz. What is the wavelength of the radio station ratio wave

Find the electric flux ΦE through a spherical surface of radius R that

contains an electric dipole as shown in the diagram.

using the current cost of electricity in saskatchewan (13.267 cents per kWh), how much did it cost to run a waffle maker

2. Find the total flux ΦE passing through the sides of a cube 1.00 m on a side if a point charge of 5.00 × 10−6 C is located at its center.

2. Find the total flux ΦE passing through the sides of a cube 1.00 m on a side if a point charge of 5.00 × 10−6 C is located at its center.

The insulation resistance of a kilometer of the cable having a diameter of 2 cm and an insulation thickness of 2 cm is 600 ohms. If the thickness of the insulation is increased to 3 cm, find the insulation resistance of the cable.