Electrical Machines The emf induced in the dc generator armature winding is AC None of these AC and DC DC AC None of these AC and DC DC ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a stepper motor the detente torque means maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding excited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The external resistance to be added in the armature circuit to limit the armature current to 125% of its rated value is 15.1 Ω 31.9 Ω 31.1 Ω 15.9 Ω 15.1 Ω 31.9 Ω 31.1 Ω 15.9 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator if field winding attains the critical resistance field winding will burn. the voltage generated will be zero. machine will generate maximum power. machine will generate maximum voltage. field winding will burn. the voltage generated will be zero. machine will generate maximum power. machine will generate maximum voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. air gap flux. speed. magnetizing current. power factor. air gap flux. speed. magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator can be considered as power pump. rectifier. rotating amplifier. prime mover. power pump. rectifier. rotating amplifier. prime mover. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS