emi

Related Questions

• An aluminium ring B faces an electromagnet A. The current I through A can be altered

  ---

• Which of the following statement is incorrect

  ---

• The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of 20 V, 50 Hz. The secondary will have an output of

  ---

• In a magnetic field of 0.05T, area of a coil changes from $101\,c{m^2}$ to $100\,c{m^2}$ without changing the resistance which is $2\Omega$. The amount of charge that flow during this period is

  ---

• In a transformer, number of turns in the primary are 140 and that in the secondary are 280. If current in primary is 4A then that in the secondary is

  ---