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3 years ago

A wire runs left to right and carries a current in the direction shown. What is the direction of the magnetic field at point Z?

Physics

2 answers:

Hoochie [10]3 years ago

8 0

Answer: Into the screen

Explanation: A wire runs left to right and carries a current in the direction shown in the figure.

According to Fleming's left-hand rule, Fleming's left-hand rule explain the direction of current by the middle finger, direction of the magnetic field by the forefinger and direction of the motion by the thumb.

We use the Flaming's left-hand rule and we can the direction of the magnetic field.

So, when the direction of the current will left to right then the direction of the magnetic field at point Z will into the screen.

konstantin123 [22]3 years ago

5 0

The direction of the magnetic field at point Z; Into the screen

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Likurg_2 [28]

Answer:

D) negative, due to extra electrons.

Explanation:

The charge that would be gained will be negative charges due to extra electrons.

Electrons are usually lost or gained by bodies that comes in contact with one another.

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Protons cannot be lost in such manner. They occupy the nucleus and are bounded by strong chemical forces within it.

The polythene and rods are both made up of chemical substances whose units called atoms are made up of subatomic particles of protons, neutrons and electrons. As with all kinds of matter, there would be pool of free electrons round them that can easily be rubbed off due to the weak attractive forces binding them in the atomic sphere.

When the polythene and rods are rubbed, there would be a loss of electrons and the gaining body, polythene becomes negatively charged.

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Question 2 (3 points)

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KATRIN_1 [288]

Answer:

discrepancy between theory and experiment 19.23 %

Explanation:

given data

Experimental theta (E) = 46.5 degrees

and

Theoretical theta (T) = 2 × 19.5 = 39 degree

so we can say % discrepancy will be

% discrepancy = $\frac{E-T}{T} * 100$ .....................1

% discrepancy = $\frac{46.5-39}{39} * 100$

% discrepancy = $\frac{7.5}{39} * 100$

% discrepancy = 19.23 %

so discrepancy between theory and experiment 19.23 %

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