when do I use the absolute value brackets on the point charge? E = k (q)/r^2 vs E = k |q|/r^2 ?

when do I use the absolute value brackets on the point charge? E = k (q)/r^2 vs E = k |q|/r^2 ?

What is the difference between an aluminium's GMR and a steel's GMR And what's its effect in transmission line thanks in advance

The cost of electricity in a certain city is $.08 for each of the first 300kWh (kilowatt-hours) and $.13 for each kWh over 300 kWh. Find the number of kilowatt-hours used by a family that receives...

-FeSO4 -ZnBr2 -Mn(OH)2 -CsBr -CCl4 Please select all that are true!

This question is from chapter electricity of class 10. Anyone please give me the answer of this question.

Two positive charges are brought closer together. Describe the work done and the energy conversion that occurs.

In the house of Ram, there are 20 incandescent bulbs each of 100 W, three geysers each of 2000 W and 20 tubes of 40 W. All these appliances work for 5 hours in a day. Every month, he pays heavy...

What is the magnetic force on a particle that has –3.2 × 10–19 C of charge and is moving at 2.5 × 107 m/s to the right through a magnetic field that is 0.24 T and pointing away from you? Specify both...

Calculate the electric force that exists between two objects that are 7.3 × 10–2 m apart and carry charges of 4.5 × 10–6 C and –7.2 × 10–6 C. Is this force attractive or repulsive?

a. Calculate the electric potential energy stored in a 1.7 × 10–11 F capacitor that stores 3.40 × 10–10 C of charge at 20.0 V. b. Calculate the capacitance of a system that stores 8...

What is the power of a light bulb that has a resistance of 144.0 Ω at 120.0 V?

a. What is the current in a 40.0 Ω resistor that has a voltage drop of 14.0 V across it? b. What is the equivalent resistance of a 3.0 Ω resistor, a 6.0 Ω resistor, and a 4.0 Ω resistor connected...

What is the size of the largest solid (not stranded) conductor approved for installation in raceways?

True statements about the relationship between the electric field and electric potential include which of the following? I. If the electric field at a certain point is...

Calculations made in accord with NEC article 220 indicate 110 amperes of continuous load with 40 amperes of noncontinuous load on a single-phase, 240/120-volt feeder. What is the minimum conductor...

I have a simple Thevenin problem that I can't seem to wrap my head around. All I need to do is find the Thevenin Equivalent. ______________________ | ...

charge of 50 μC is placed on the y axis at y = 3.0 cm and a 77-μC charge is placed on the x axis at x = 4.0 cm. If both charges are held fixed, what is the magnitude of the initial acceleration of...

Two electric bulbs,each designed to operate with the power of 500W in 220V line, are connected in series with 110V line.What is power consumed by each bulb ?

Pontiac Silverdome Stadium, in Detroit, Michigan, is the largest air supported building in the world. Suppose a charge of 18.0 μC is placed at one end of the stadium and a charge of –12.0 μC is placed...

Electrical appliances plug into the wall with a single plug, but a plug has at least two prongs (sometimes there is a third one, but the minimum is two). Why do you think that this is the case? Refer...

Yamil V.

Professor at Top University, Politics, Statistics and Programming

New York, NY

5.0
(49 ratings)

Randy K.

Passionate Mathematics and Physics Tutor

New York, NY

5.0
(82 ratings)

David Y.

Patient Business, Math, and Statistics Educational Consultant & Tutor

New York, NY

4.8
(260 ratings)