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Tcecarenko [31]
3 years ago
13

Problem 4: a long wire carries current towards east. a positive charge moves westward and just north from the wire. what is the

direction of the force experienced by this charge?
Physics
1 answer:
Alex787 [66]3 years ago
4 0
The direction of the force experienced by the positive charge is upward.

We can use the right-hand rule to understand the direction of the Lorentz force acting on the charge: let's put the thumb in the same direction of the current in the wire (eastward), while the other fingers "wrap themselves" around the wire. These other fingers give the direction of the Lorentz force in every point of the space around the wire. Since the charge is located north of the wire, in that point the fingers are directed upward, so the positive charge experiences a force directed upward.
(if it was a negative charge, we should have taken the opposite direction)
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if the efficiency of an electric furnace is 96%, then 96% of the input energy is transformed into thermal energy. what is the ot
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5 0
3 years ago
_______ from the mantle rises and flows out through a vent onto Earth's surface as _______. This molten material, sometimes alon
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hope this helps
5 0
3 years ago
Read 2 more answers
Can someone help me with these questions plz
Korolek [52]

Im not 100% on these but i can try

1. A compound is made up of elements and their different atoms

2.

A. salt- compound (NaCl) is two elements Na (sodium) and Cl (chloride?)

B. Nitrogen- element its on the periodic table

C. Helium- element its on the periodic table

D. Water- compound (H2O) two elements hydrogen and oxygen

3. element, compound, compound, element

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8 0
3 years ago
State the role of an electromotive force (EFF) in a current flow
bonufazy [111]

Answer:

The emf source acts as a charge pump, moving negative charges from the positive terminal to the negative terminal to maintain the potential difference. This increases the potential energy of the charges and, therefore, the electric potential of the charges.

Explanation:

MARK AS BRAINLEST!!

8 0
2 years ago
A 300-W blender did 10,500J of work. how long was the blender running?
forsale [732]

Answer:

The blender was running for 35 seconds.

Explanation:

Given:

Power of the blender is, P=300\ W

Work done by the blender is, W=10500\ J

We know that, power is defined as the rate at which work is done by the body.

Here, we are given the power and work done and we are asked to find time taken.

Let the time of running of the blender be 't' seconds.

So, the power of the blender is given as:

P=\frac{W}{t}

Rewriting the above in terms of 't', we have

t=\frac{W}{P}

Plug in the given values and solve for 't'. This gives,

t=\frac{10500}{300}\\t=35\ s

Therefore, the blender was running for 35 seconds.

6 0
3 years ago
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