What is electric potential across a resistor if a resistance

Jovany Clayton 2022-07-16 Answered

What is electric potential across a resistor if a resistance of 20ohms draws a current of 6 amperes?

Ask Expert 2 See Answers

You can still ask an expert for help

Answers (2)

escampetaq5

Answered 2022-07-17 Author has 12 answers

Explanation:
From Ohm’s Law

V = I R = 6 A \times 20 Ω = 120 v o l t s

This is helpful

This is helpful 0

Montenovofe

Answered 2022-07-18 Author has 3 answers

Ohm's law states that,
V=IR
I is the current in amperes
R is the resistance in ohms
And so, we got:

V = 6 A * 20 Ω

=120V

This is helpful

This is helpful 0

You might be interested in

asked 2022-05-08

In the grating equation

n λ = d \sin θ

θ

will be determined in the lab using the angular scale on the experimental apparatus. using meter sticks and geometry/trigonometry. using a protractor.

See answers (1)

asked 2022-05-19

What is the electric current produced when a voltage of 24V is applied to a circuit with a resistance of

8 Ω

See answers (1)

asked 2022-05-08

The formula for resistivity is:

ρ = \frac{R A}{L}

ρ

is resistivity,

R

A

is cross-sectional area, and

L

is the length of the conductor.
We can see from the formula that

A

L

are involved, why then does resistivity not depend on dimensions?

See answers (2)

asked 2022-05-14

Velocity of projectile with both quadratic and constant resistive force
Suppose we have a projectile of mass m that impacts a material with velocity

v_{0}

. As it travels through the material it is subject to the resistive force

F = α v^{2} + β

. How can I determine

v (t)

, the velocity of the projectile at time t where t=0 is the impact time, and

v (p)

, the velocity of the projectile when it reaches a penetration depth of p?
This question addresses v(t) for an exclusively quadratic resistive force (

β = 0

), but is there a more general formula for when there is a constant component?

See answers (1)

asked 2021-03-01

Answer the following T/F questions based on the behavior of the circuit in the above Figure 5:
(1) A transient current flows for a short time after the RELAY is switched to either the N.O.("normally open") or N.C. ("normally closed") position.
(2)The transient currents that flow in this experiment decays exponentially to zero.
(3)The capacitor charge Q exponentially decays to zero when the RELAY is thrown to position N.O.
(4)When the current I is positive, the capacitor charge Q is decreasing.
(5)When the current I is positive, the measured VOLTAGE IN 2 will be negative.
(6)When the capacitor charge Q is positive, the measured VOLTAGE IN 1 is positive.
(7)The quantity t1/2=? ln 2 is called the half-life of an exponential decay, where ?=RC is the time constant in an RC circuit. The current in a discharging RC circuit drops by half whenever t increases by $t_{\frac{1}{2}}$ . For a circuit with R=2 k? and C=3 ?F, if the current is 6 am at t=5 ms, at what time (in ms) will the current be 3 mA?

See answers (1)

asked 2022-04-12

The particle is falling down, and x is measured in down direction.

x^{″} = g - k v^{4} ⟹ v \frac{d v}{d x} = g - k v^{4}

Solving this I get

\frac{1}{4 \sqrt{g k}} \log (\frac{\sqrt{k} v^{2} - \sqrt{g}}{\sqrt{k} v^{2} + \sqrt{g}}) = x + c

It is falling from rest, i.e x=0,v=0, using this initial condition I get

\log (- 1)

on the LHS. Is something wrong with the solution. I check that integral is correct.

See answers (1)

asked 2022-05-17

What is the resistivity coefficient of graphene?

See answers (1)

New questions

How does induced magnetism work with magnetic induction and magnetic domain?

Two identical tuning forks are placed side by side. Why does the vibration of the first tuning fork cause the vibration of the second?

There's a lot of information online about increasing the strength of an electromagnet with more turns, different cores, etc, but not much about factors in the power supply that affect the strength of the magnet.
I've got a commercial electromagnet rated for 12VDC that's supposed to produce 200 lbs of pull. What factors in the power supply will maximize this magnet's strength?

The current is maximum through those segments of a circuit that offer the least resistance. But how do electrons know beforehand that which path will resist their drift the least?

Can a device be constructed of a super conducting disk connected to a electromagnet that generates a field such that the disc locks "in" the field generated by the electromagnet such that the device self levitates without the need for track or permanent magnets?

In what substances does sound travel fastest?

What is an obliquity cycle?

If we have two laser beams with central wavelengths

λ_{1}

λ_{2}

, (one with a spectral width of

Δ λ_{2}

and one with negligible spectral width), interacting in a non-linear crystal, how would we calculate the spectral width of the difference-frequency-generated (DFG) output? I know it's a Lorentzian given by

Δ λ = \frac{4 λ_{1}^{2} Δ λ_{2}}{4 (λ_{2} - λ_{1})^{2} - Δ λ_{2}^{2}}

. But I don't know how to prove this.

A substance at 200-degree Celsius is given some amount of heat to raise its temperature by one degree Celsius and the same substance when at -200 degrees Celsius is given some amount of heat to increase its temperature to -199 degrees Celsius. Is the amount of heat required for both the processes same?

Going from slowest to fastest, rank the following seismic waves: (a) Rayleigh waves, (b) P-waves, (C) S-waves.

Secondary

Post Secondary