Physics, 22.09.2019 06:50 kp2078

Awire is wrapped multiple times around a galvanized or aluminum nail and then each end of the wire connected to a battery for some period of time. what happens when the nail is then positioned next to a paper clip and why?

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Answer from: rakanmadi87

Hello. This question is incomplete. The full question is:

"A wire is wrapped multiple times around a galvanized or aluminum nail and then each end of the wire connected to a battery for some period of time. What happens when the nail is then positioned next to a paper clip and why

A)the paper clip is repelled away from the nail because an electromagnetic field magnetized the nail . B)the paper clip is attracted toward the nail because an electromagnetic field magnetized the nail . C)no effect at all on the paper clip from the wire or the nail . D)the paper clip straightens out because of Ohm's Law."

A)the paper clip is repelled away from the nail because an electromagnetic field magnetized the nail .

Explanation:

An electromagnetic field is a system formed by electric charges where a magnet manifests its action by repelling, or attracting bodies. This system is formed through the passage of an electric current, through conductors, as wires and using an electrical energy source, such as a battery, for example.

As mentioned earlier, this system can establish the attraction or the removal of two bodies. An example of this can be seen in the question above, where a wire is wound several times around a galvanized or aluminum nail and then each end of the wire is connected to a battery for a period of time. If a nail approaches these systems, a magnetized electromagnetic field is created around that nail. The result of this will be that the paper clip will be repelled, as it does not contain attraction poles with the nail.

Answer from: Quest

He can play two games. 13/4=3.253.25*2=6.5

Answer from: Quest

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol

b. a hockey puck sliding across the ice

c. a compressed spring

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice is the correct option.

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