Power,Power Across Bulbs

Power | Power Across Bulbs

Power generated across a uniform wire connected across a supply is H . If the wire is cut into n equal parts and all the parts are connected in parallel across the same supply, the total power generated in the wire is

Assertion : In lower combination of electric bulbs the bulb of lower power emit more light than that of highest power bulb Reason : The power power bulb in series gets more of higest power bulb

The voltage across a bulb is decreased by 2%. Assuming that the resistance of the filament remains unchanged, the power of the bulb will

A series circuit consists of three bulbs connected to a battery as shown. When switch S is closed, what happens to (a) Power consumed in bulb X and Y (b) Power consumed in bulb Z (c ) the current in the circuit (d) the voltage drop across three bulbs and (e) the power consumed in circuit?

For the given circuit, the power across zener diode is _____ mW.

Power dissipated across the 8 Omega in the circuit shown here is 2 W . The power dissiated in watt units across the 3 Omega is

Three 60 W , 120 V light bulbs are connected across a 120 V power lines as shown in Fig. 7.26 . Find (a) the voltage across each bulb and (b) the total power dissipated in the three bulbs.

An electric bulb marked as 50 W-200 V is connected across a 100 V supply. The present power of the bulb is