the answer would be B. the back emf increases, and the current drawn from the socket increases
more current is needed to make the motor move, like when you try to self crank a motor and the back wires are touching its harder to crank. and the emf increases since more current is being drawn in, strengthening the emf or increasing the emf
Answer:
Matter in its gas state has the most thermal energy than when it is a solid or a liquid. Because gasses have more thermal energy than others, they move differently than others.
Explanation:
;P
Current will be
now just pluf in the values and Voila..
Particle arrangement and movement
⇒ In terms of relative energy, gas particles have the most energy, solid particles have the least energy and liquid particles are somewhere in between. (All compared at the same temperature.)
<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>
Answer:
inductance per unit length is
Explanation:
The diagram of coaxial cable is shown on the first uploaded image
From the question we are told that
The radius of the inner conductor is a
The current passing through the first cylindrical conductors is = I
The current passing through the first cylindrical conductors is = - I
The radius of the outer conductor is b
According to Ampere's law
∮
=>
=>
The magnetic flux on the coaxial cable can be mathematically represented as
Now the emf induced in the coaxial cable is mathematically represented as
=>
=>
=>
substituting for
dividing through by