Electric Circuits Answers

Determine whether the following force field
F

is conservative:
F
ˆ
i
ˆ
j k

Two charges each +4 nC are on the x-axis, one at the origin and the other at x = 8 m. Find the electric field on the x-axis at:
x = -2 m d) x = 10 m
x = 2 m e) At what point on the x-axis is the electric field zero?
x = 6 m f) Sketch Ex versus x

A wire-wound resistor with a resistance of 250ohm will overheat if the power dissipated exceeds 10W. What is the maximum constant voltage V that can be applied across the terminals of this resistor?

There is a circuit with an inductor and two capacitors in series. Each capacitor is adjacent to the inductor. Capacitor 1 has charge Q1 and Capacitor 2 has charge Q2. Current is moving in the clockwise direction check this figure

https://www.chegg.com/homework-help/questions-and-answers/case-difficult-read-charges-right-capacitor-q2-q2-q37457186

We are asked to derive a formula for the resonant frequency.

A 3 V battery is connected to a bulb with a resistance of 12 Ω. How much current will flow through the circuit?

My question comes from this website https://www.chegg.com/homework-help/questions-and-answers/case-difficult-read-charges-right-capacitor-q2-q2-q37457186. Can I please get some help?

[img]https://upload.cc/i1/2020/04/20/y3Yo4L.jpg[/img]


question is in photo . R=4

3. The magnetic flux is a scalar that is proportional to the number of the magnetic field lines passing through a closed surface and is expressed by Φ) = BA cos θ, where B is the magnitude of the magnetic field, A the area of the surface and θ is the angle between the direction of the magnetic field and the line vertical to the surface. Calculate the magnetic flux through the area of the surface if the length of the rectangle is 8 m and the width is 5 m

1. Sketch two identical linear magnets with the following orientations of their magnetic poles:
a) S – N and N – S, b) S – N and S – N
If the axes of the magnets are in the same straight line, draw the magnetic field lines for the two magnets.

Calculate (a) the value of the resistor Rx, such that the total power dissipated in the circuit is 2.5KW, and (b) the current flowing in each of the four resistors . R1=15ohms, R2=10ohms, R3=38ohms and R4=Rx.