Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be 0 V. 900 V. 1800 V. 200 V. 0 V. 900 V. 1800 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which statement does not say that electrostatic field is conservative? If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. If is gradient of a scalar potential. If the curl of E is identically zero. The potential difference between two points is zero. The work done in a closed path inside the fields is zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The principle of dynamically induced emf is utilized in a generator. transformer. thermocouple. choke. generator. transformer. thermocouple. choke. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following can induce the maximum induced voltage ? 1 amp dc. 1 amp 1 Hz. 1 amp 100 Hz. 20 amp dc. 1 amp dc. 1 amp 1 Hz. 1 amp 100 Hz. 20 amp dc. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The heating time constant of an electrical machine gives an indication of its short time rating. cooling. rating. overload capacity. short time rating. cooling. rating. overload capacity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic vector potential due to a single conductor carrying current is infinite. none of tha above. zero. finite. infinite. none of tha above. zero. finite. ANSWER DOWNLOAD EXAMIANS APP
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