Electric Circuits Answers

Plates of area A are arranged as shown. The distance between them is d. Find the net capacitance

Design a TDM system to handle 3 PAM channels if the maximum input frequency of each channel is 5 kHz

Calculate the amount of electrical energy that is converted into other forms when a hair drier, rated at 1200 W, is used for 8 min.

Find the resistance of the resistor R2 in the circuit below.
R1=1 ohms
V=1,5v
I=0,25A

An alternating voltage u (V) across a resistor with resistance 10.0  varies with time
t (s) according to equation u = 25.0.sin 100t.
a) Determine the effective value of the voltage.
b) How much energy is converted into the resistor for 1 minute?

20 kHz audio signal is amplitude modulated over a 100 kHz carrier frequency. The
peak amplitude of carrier wave is 10 V. If the modulation index is 0.8, find out the
frequencies present in the modulated output. Also calculate the ratio of maximum and
the minimum amplitude of the envelope of modulated signal.

The permanent bar magnet is moved to the downward, toward a loop of wire (as shown). The north pole of the magnet is closer to the loop, as shown. What direction will the INDUCED magnetic field be in the center of the loop of wire, from the loop of wire?
Picture: https://ibb.co/gD85djT

A vertical wire has (conventional) current flowing through it straight upward (toward the sky). What will be the direction of the magnetic field 1 meter directly north of the wire?
A. North
B. South
C. East
D. West
E. Up
F. Down

==> i think it west right?

[img]https://upload.cc/i1/2020/05/09/uYgzwX.jpg[/img]



question in photo,R=4,you can sub R=4

[img]https://upload.cc/i1/2020/05/09/dwlmCx.jpg[/img]




question in picture,R=4,you can sub R=4