Forty electric bulbs are connected in series across a $220\, V$ supply. After one bulb is fused, the remaining $39$ are connected again in series across the same supply. The illumination will be
Forty electric bulbs are connected in series across a $220\, V$ supply. After one bulb is fused, the remaining $39$ are connected again in series across the same supply. The illumination will be
- [AIPMT 1989]
- A
More with $40$ bulbs than with $39$
- B
More with $39$ bulbs than with $40$
- C
Equal in both the cases
- D
In the ratio of ${49^2}:{39^2}$
Similar Questions
An electric heater consists of a nichrome coil and runs under $220 \,V$, consuming $1 \,kW$ power. Part of its coil burned out and it was reconnected after cutting off the burnt portion.The power it will cunsume now is
An electric heater consists of a nichrome coil and runs under $220 \,V$, consuming $1 \,kW$ power. Part of its coil burned out and it was reconnected after cutting off the burnt portion.The power it will cunsume now is
- [KVPY 2010]
If power dissipated in the circuit is $150\,W,$ then value of $R$ is ............... $\Omega$
If power dissipated in the circuit is $150\,W,$ then value of $R$ is ............... $\Omega$
If three bulbs $60\,W$, $100\,W$ and $200\,W$ are connected in parallel, then
If three bulbs $60\,W$, $100\,W$ and $200\,W$ are connected in parallel, then
The voltage of clouds is $4 \times 10^6\,volt$ with respect to round. In a lighteing strike lasting $100\,m\,sec$, a charge of $4\,coulombs$ is delivered to the ground. The power of lightening strike is
The voltage of clouds is $4 \times 10^6\,volt$ with respect to round. In a lighteing strike lasting $100\,m\,sec$, a charge of $4\,coulombs$ is delivered to the ground. The power of lightening strike is
- [AIIMS 2006]
Two electric bulbs ($60\,W$ and $100\,W$ respectively) are connected in series. The current passing through them is
Two electric bulbs ($60\,W$ and $100\,W$ respectively) are connected in series. The current passing through them is