21) A heater with name plate markings of 250 V, 1000 W, heater element 500 Degree C is connected to 230 V supply. What will happen to the heater ?

The output heat remains the same

The glow of the heater element will be dim

The glow will be brighter because of more current

The efficiency will increase

Answer is:

The output heat remains the same

outside the bathroom

inside the bathroom

near the main switch

opposite wall of the geyser

Answer is:

1400 to 2000 r.p.m.

1400 to 2600 r.p.m.

1400 to 3000 r.p.m.

3000 to 12000 r.p.m.

Answer is:

universal motor

shaded pole motor

capacitor start motor

none of the above

Answer is:

Washing machine

Food mixer

Toaster

Table fan

Answer is: