# Connections in Parallel

## Trending Questions

**Q.**

Why in a circuit with resistors in -

• parallel has potential difference constant in whole circuit but not current.

• series has current constant in whole circuit but not potential difference.

**Q.**If a bulb and the coil are connected in series with a DC source and iron core put in the coil then the glowing of bulb. 1 )decreases 2) increases 3 )no change 4)zero

**Q.**

How to guess whether a circuit is in series combination or parallel combination?

**Q.**

How to distribute current in parallel and series combination?

**Q.**

Which of the following is/are NOT true about the parallel connection?

Every unit that is connected gets an equal amount of voltage

Easy to connect or disconnect a new element without affecting the working of other elements

As the number of components in a circuit increases, greater will be the circuit resistance

Requires less wire compared to the series connection

**Q.**

If four resistors each of 1 Ω are connected in parallel. The effective resistance will be:

2 Ω

4 Ω

0.5 Ω

0.25 Ω

**Q.**Four cells of emf e and internal resistance r are connected in parallel combination. The equivalent emf of this combination is

**Q.**A cell of e.m.f. 2 V and internal resistance 1.2 Ω is connected to an ammeter of resistance 0.8 Ω and two resistors of 4.5 Ω and 9 Ω as shown in figure. Find:

a) The reading of the ammeter,

b) The potential difference across the terminals of the cell, and

c) The potential difference across the 4.5 ohm resistor.

**Q.**What is resistance? What are different types of combination of resistors ? Why is the current flowing across all the resistors connected in series is same ?

**Q.**Find the ratio of the maximum to the minimum resistance for a combination of 'n' equal resistors.

- n
- 1n2
- n2
- 1n

**Q.**Why is voltage same in parallel combination of resistors and different in series?

**Q.**

The equivalent resistance of a circuit that has two equal resistors in series is 8 Ω. Find the value of each resistor.

8 Ω

2 Ω

4 Ω

1 Ω

**Q.**

Which of the following is/are NOT true about the parallel connection?

Every unit that is connected gets an equal amount of voltage.

Easy to connect or disconnect a new element without affecting the working of other elements.

As the number of components in a circuit increases, greater will be the circuit resistance.

Requires less wire compared to the series connection.

**Q.**ntTwo identical cells whether connected together in series or parallel gives same amount of current when connectede to 2ohm external resistance.The internal resistance r is?n

**Q.**

The equivalent resistance of a circuit that has two equal resistors in series is 8 Ω. Find the value of each resistor.

4 Ω

8 Ω

1 Ω

2 Ω

**Q.**

What is the equivalent resistance in the given circuit?

35 Ω

560 Ω

70 Ω

400 Ω

**Q.**How to identify the combinations of resistors are in parallel or series while solving problems ?

**Q.**five cell of emf E and internal resistance r send the same amount of current through an external resistance E whether the cells are connected in parallel or in series. Then the ratio (R/r) is?

**Q.**

what is series in electric circuit?

**Q.**

The equivalent resistance of a circuit that has two equal resistors in series is 8 Ω. Find the value of each resistor.

8 Ω

2 Ω

4 Ω

1 Ω

**Q.**

If n equal resistances are first connected in series and then connected in parallel, the ratio of the maximum resistane to the minimum resistance is

n

1n2

n2

1n

**Q.**

In parallel combination, the total resistance of the circuit becomes

either less than or more than

less than

equal to

more than

**Q.**N cells each of emf E and internal resistance r send the same current through an external resistance R whether the cells are connected in series or in parallel. The R=? A) nr B) r C)n /r