Explanation:
If a positive test charge is placed in an electric field, it will exert the force in the test charge in the direction of electric field vector. We know that the direction of electric field is given by electric field lines. The field lines for a positive charge is outwards. The electric force acting on the charge is given by :
F = q E
Hence, this is the required solution.
<h2>
Answer: Invariance of the speed of light in vacuum </h2>
Special relativity was proposed on 1905 by Einstein, who developed his theory based on the following two postulates:
<em>1. The laws of physics are the same in all inertial systems. There is no preferential system. </em>
<em>2. The speed of light in vacuum has the same value for all inertial systems. </em>
<em></em>
Focusing on the first postulate, it can be affirmed that any measurement on a body is made with reference to the system in which it is being measured.
In addition, it deals with the <u>dilation of time</u> stating that <u>time passes at different rates in regions of different gravitational potential</u>. That is, the greater the local distortion of space-time due to gravity, the slower the time passes.
On the other hand, following what relativity establishes, bodies within a gravitational field follow a curved space path.
Answer:
see explanation
Explanation:
by my calculations, i believe it may be because they have to pretend to be in space.
Answer:To explian the exact calculation of this pruduct we must not try!
Answer:
The current induced in the loop is
.
Explanation:
Given that,
Magnetic field 
Radius 
Resistance =R
We need to calculate the area of the loop
Using formula of area

Put the value of r in to the formula


We need to calculate the flux
Using formula of flux


We need to calculate the emf
Using formula of emf



We need to calculate the current
Using formula of current



Hence, The current induced in the loop is
.