Types of Electric Circuits Series and Parallel

Q.

Name four different effects of electric current?

Q.

How does temperature affect the internal resistance of a battery?

Q. If bulb-$1$ of $25W$ and bulb$-2$ of $100W$ rated at $220V$ are connected in series across a $440V$ supply, will both the bulbs fuse? If not which one?

Q. A $25W$, $220V$ bulb and a $100W$, $220V$ bulb are connected in series across a $440V$ line. Select the correct answer from the options given below.

1. Only $100W$ bulb will fuse.
2. Only $25W$ bulb will fuse.
3. Both bulbs will fuse.
4. None of the bulb will fuse.

Q. Which of the following correctly represents charging by induction?​

1. I & II
2. Only I
3. II & III
4. I & III

Q. A 25 watt, 220 volt bulb and a 100 watt, 220 volt bulb are connected in series across 440 volt line. Then ,
( Breaking Voltage of both the bulbs is 300 V )

1. Only 100 watt bulb will fuse
2. Both bulbs will fuse
3. Only 25 watt bulb will fuse
4. None of the bulbs will fuse

Q. Two electric bulbs, each designed to operate with a power of 500 W in a 220 V line, are connected in series with a 110 V line. The power consumed in each bulb is

1. 125 W
2. 93.75 W
3. 62.5 W
4. 31.25 w

Q. Nayana has set up an electric circuit using some connecting copper wires, a battery, a switch and a bulb that she has taken from a torch light. But after connecting the equipments, the bulb is not glowing. What can be the reason(s) for this?

1. The bulb's filament is broken.
2. The circuit which should be closed is open instead.
3. The battery is dead.
4. Torch light bulbs cannot be used for this experiment.

Q. Nayana has set up an electric circuit using some connecting copper wires, a battery, a switch and a bulb that she has taken from a torch light. But after connecting the equipments, the bulb is not glowing. What can be the reason(s) for this?

1. The bulb's filament is broken.
2. The circuit which should be closed is open instead.
3. The battery is dead.
4. Torch light bulbs cannot be used for this experiment.

Q. Four bulbs $B_1,B_2,B_3$ and $B_4$ of 100 W each are connected to 220 V main as shown in the figure. The reading in an ideal ammeter will be :

1. 0.45 A
2. 0.90 A
3. 1.35 A
4. 1.80 A

Q. A capacitor of capacitance C has charge Q . It is connected to an identical capacitor through a resistance. The heat produced in the resistance. ( its answer is Q2/4C).

Q.

Two electric bulbs whose resistances are in the ratio 1:3 are connected in parallel to a constant voltage source. The powers dissipated in them have the ratio.

1. 1:1

2. 1:3

3. 3:1

4. 1:9

Q. How will the 1.energy stored and 2.the electric field inside the capacitor be affected when it is completely filled wth a di electric material of dielectric constant K.?

Q. Which of the following energy conversions take place in a torch?

1. $\text{Electrical}\to \text{Chemical}\to \text{Light}$
2. $\text{Chemical}\to \text{Electrical}\to \text{Light}$
3. $\text{Electrical}\to \text{Light}\to \text{Chemical}$
4. $\text{Light}\to \text{Chemical}\to \text{Electrical}$

Q.

How do we connect these two identical cells of 1.5 volt each to design a 3.0 volt battery?

1. Connect terminal A to D.

2. Connect terminal D to B.

3. Connect terminal B to C.

4. Connect terminal A to C.