You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

EMF and EMF Devices

A battery, an...

Question

A battery, an open switch and a resistor are connected in series as shown in figure. Consider the following three statements concerning the circuit. A voltmeter will read zero if it is connected across points.
(i) P and T
(ii) P and Q
(iii) Q and T
Which one of the given is/are true?

Only (i)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Only (iii)

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Only (i) and (iii)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

(i), (ii) and (iii)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Only (iii)
We know,

Connecting wires offer zero resistance,

Hence potential at $Q$ and at $T$ are same.i.e $V_{Q} = V_{T}$

Potential difference along $Q T$ will be read zero by voltmeter.

And potential along $P T$ will be $V$
Where $V$ voltage of battery.

Option $B$ is the correct answer

Suggest Corrections

Similar questions

Q. A network shown in the figure consists of a battery and five unknown resistors. When an ideal ammeter is connected between the terminals

A

and

B

, its reading is

4 A

and when a resistance of

3 Ω

is connected in series with the ammeter its reading becomes

2 A

. Now the ammeter and the resistance are disconnected and an ideal voltmeter is connected between the terminals

A

and

B

. What would the voltmeter read?

Q. Which of the following statements are correct about the circuits shown in the figure where 1

Ω

and 0.5

Ω

are internal resistances of the 6 V and 12 V batteries respectively

Which of the following statements is correct about the circuit shown in figure where 1 ohm and 0.5 ohm are the internal resistances of the 6 V and 12 V batteries respectively?

Q. A voltmeter and a ammeter are connect in series to an ideal cell of emf E. the voltmeter reading is V, and the ammeter reading is I. Then
i. V < E

ii. The voltmeter resistance is V/I

iii. The potential difference across the ammeter is E V

iv. voltmeter resistance + ammeter resistance = E/I

Correct statements are

Q. An ammeter, voltmeter and a resistor are connected in series to a cell and the readings are noted as

I

and

V

. If another resistor

R

is connected in parallel with voltmeter, then:

Join BYJU'S Learning Program

A battery, an open switch and a resistor are connected in series as shown in figure. Consider the following three statements concerning the circuit. A voltmeter will read zero if it is connected across points.(i) P and T(ii) P and Q(iii) Q and TWhich one of the given is/are true?

The correct option is B Only (iii)We know,Connecting wires offer zero resistance,Hence potential at Q and at T are same.i.e VQ=VTPotential difference along QT will be read zero by voltmeter.And potential along PT will be V Where V voltage of battery.Option B is the correct answer

A battery, an open switch and a resistor are connected in series as shown in figure. Consider the following three statements concerning the circuit. A voltmeter will read zero if it is connected across points.
(i) P and T
(ii) P and Q
(iii) Q and T
Which one of the given is/are true?