Math, asked by xXitzMissUniqueXx, 4 months ago

The Self-induced emf of a coil is 25 volts, When the current in it is changed at uniform rate from 10 A to 25 A in 1s, the change in the energy of the inductance is :

✓ Need Quality answer !




◤ᴍɪꜱꜱ.ꜱɪɴɢʜ◢​

Answers

Answered by Anonymous
6

GIVEN :

  • The self induced emf of a coil = 25 volts.
  • Current = 10 A to 25 A.
  • time (t) = 1 sec.

TO FIND :

  • The change in energy of the inductance = ?

SOLUTION :

\large \red {\boxed {\sf L \: \dfrac {di}{dt} \: = \: 25}}

\implies \sf L  \times \dfrac {15}{1} \: = \: 25

\implies \sf L \: = \: \dfrac {5}{3} \: H

\implies \sf \triangle E \: = \: \dfrac {1}{2} \times \dfrac {5}{3} \: (25^{2} \: - 10^{2})

\implies \sf \dfrac {5}{6} \times 525

\implies \sf \therefore \triangle E \: = \: 437.5 \: J

\large \blue {\boxed {\sf \triangle E \: = \: 437.5 \: J}}

\therefore The change in the energy of the inductance is 437.5 J.

Answered by ItZzMissKhushi
3

Answer:

Hope this helps sis

Step-by-step explanation: xXitzMeAngelXx aapki Id h kya

Attachments:
Similar questions