Series and Parallel Connection of Cells

Q.

How many Ohms are in a short circuit?

Q.

Which circuit represents a series combination of resistors?
i)

ii)

1. i) and ii)

2. Neither i) nor ii)

3. i) only

4. ii) only

Q.

In the following circuit, the wire parallel to resistor R does not have any resistance. Then, all the current will pass through the resistor R.

1. True

2. False

Q. A battery of emf 10V and internal resistance 0.5 ohm is to be charged by a battery charger which supplies 110V dc. The resistance that must be connected in series with the battery to limit charging current to 5A is R and terminal voltage across the battery during charging is Vt. Then R and Vt are respectively?

Q.

Fig.816 shows two ways of connecting the three bulbs A, B and C to a battery. Name the two arrangements. Which of them do you prefer to use in a household circuit? Give a reason to support your answer.

Q.

What is meant by grounding?

Q. A battery of 20V cells is charged by 220V with a charging current of 15A. If the emf of each cell is 2V and internal resistance is 0.1 ohm, then the series resistance required to be placed in the circuit will be 1) 16 ohm 2) 10 ohm 3) 12 ohm 4) 14 ohm

Q.

When 3 batteries having EMFs E1, E2 and E3 respectively are connected in series, what will the value of voltage measured across the combination?

1. None of the above

2. E1 + E2 + E3

3. E1 X E2 + E3

4. E1 X E2 X E3

Q. What we get in our homes : AC or DC ?
And why ?

Q.

Insulators can be charged but do not conduct electric charge.

1. True

2. False

Q.

What does the above symbol represent?

1. Cell

2. Battery

3. Resistor

4. Rheostat

Q.

Identify correct relation for the circuit mentioned below, assuming the current $I_3$ flows through a conductor with zero resistance:

1. $I_1=I_2+I_3+I_4$

2. $I_1=I_3$

3. $I_1=I_2$

4. $I_3=I_5$