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3 years ago

Why do negative particles move more easily than positive particles in an atom?

2 answers:

6 0

The protons or positive charges are always bound to the nucleus of the atom and cannot move freely. When a conductor is brought close to a negative charge, the electrons that are free to move will move away from the charge as far as they can.

erma4kov [3.2K]3 years ago

4 0

Answer:the negative particles are electrons which are smaller and weigh less than the proton

Explanation:

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Suppose that a charged particle of diameter 1.00 micrometer moves with constant speed in an electric field of magnitude 1.00×105

Dovator [93]

It's a bit of a trick question, had the same one on my homework. You're given an electric field strength (1*10^5 N/C for mine), a drag force (7.25*10^-11 N) and the critical info is that it's moving with constant velocity(the particle is in equilibrium/not accelerating).
All you need is F=(K*Q1*Q2)/r^2 
Just set F=the drag force and the electric field strength is (K*Q2)/r^2, plugging those values in gives you 
(7.25*10^-11 N) = (1*10^5 N/C)*Q1 ---> Q1 = 7.25*10^-16 C

3 0

3 years ago

Read 2 more answers

A wire of length 26.0 cm carrying a current of 5.77 mA is to be formed into a circular coil and placed in a uniform magnetic fie

Olin [163]

Answer:

The maximum torque is $\tau_{max} = 1.139 *10^{-7} \ N \cdot m$

Explanation:

From the question we are told that

The length of the wire is $l = 26.0 \ cm = 0.26 \ m$

The current flowing through the wire is $I = 5.77mA = 5.77 *10^{-3} \ A$

The magnetic field is $B = 3.67 \ mT = 3.67 *10^{-3 } T$

The maximum torque is mathematically evaluated as

$\tau_{max} = \mu B$

Where $\mu$ is the magnetic dipole moment which is mathematically represented as

$\mu = \frac{I l^2}{4 \pi n }$

Where $n$ is the number of turns which from the question is 1

substituting values

$\mu = \frac{ 5.77 *10^{-3} * 0.26^2}{4 * 3.142* 1 }$

$\mu = 3.10 4* 10^{-5} A m^2$

Now

$\tau_{max} = 3.104 *10^{-5} * 3.67 *10^{-3}$

$\tau_{max} = 1.139 *10^{-7} \ N \cdot m$

7 0

3 years ago

The smallest unit of an element that has all of the properties of the element is a/an

Minchanka [31]

The smallest unit of an element that has all the properties of the element is an atom. This has all the properties of an atom, including the particles.

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3 years ago

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A rocket is launched with a velocity of 30 m/s at 40° to the horizontal. How far will it

steposvetlana [31]

Answer:

A. Rocket A will travel farther horizontally than rocket B.

Explanation:

This is because from the x axis, 40 m/s at 90 degrees travels directly vertical. 40 m/s at 70 degrees is slightly horizontal, so it will travel further horizontally.

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3 years ago

A fuse in an electric circuit is a wire that is designed to melt, and thereby open the circuit, if the current exceeds a predete

arlik [135]

Answer:

0.0389 cm

Explanation:

The current density in a conductive wire is given by

$J=\frac{I}{A}$