Transformers A step up transformer increases Voltage Frequency Current Power Voltage Frequency Current Power ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Leakage flux is small Losses are small Applied voltage and frequency are constant Iron core is used Leakage flux is small Losses are small Applied voltage and frequency are constant Iron core is used ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is four times the primary current equal to the primary current one-fourth the primary current and equal to the primary current one-fourth the primary current four times the primary current equal to the primary current one-fourth the primary current and equal to the primary current one-fourth the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High permeability Low hysteresis loss High silicon content All of the listed here High permeability Low hysteresis loss High silicon content All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 3000 kVA 500 kVA 1000 kVA 250 kVA 3000 kVA 500 kVA 1000 kVA 250 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers The amount of copper in the primary is _______that of secondary. Smaller than About the same as None of the listed here Greater than Smaller than About the same as None of the listed here Greater than ANSWER DOWNLOAD EXAMIANS APP
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