A transformer containing 840 turns in the primary winding in no-load mode raises the voltage from 220 to 660 V.
| December 15, 2020 | education
A transformer containing 840 turns in the primary winding in no-load mode raises the voltage from 220 to 660 V. How many turns does the secondary winding of the transformer contain?
n₁ = 840
U₁ = 220 V
U₂ = 660 V
n₂ =?
n₁ / U₁ = n₂ / U₂
840/220 = n₂ / 660
840 = n₂ / 3
n₂ = 2520
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