मराठी

Compare How an Ammeter and a Voltmeter Are Connected in a Circuit.

Advertisements
Advertisements

प्रश्न

Compare how an ammeter and a voltmeter are connected in a circuit.

Advertisements

उत्तर

The ammeter is connected in series with the circuit in which the current is to be measured, whereas the voltmeter is connected across the points where the potential difference is to be measured.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Electricity - Exercise 2 [पृष्ठ १९६]

APPEARS IN

लखमीर सिंह Physics Part 1 [English] Class 10
पाठ 4 Electricity
Exercise 2 | Q 10. | पृष्ठ १९६

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

<p> Define the unit of electric current (or Define ampere).


(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:

(i) Total resistance.
(ii) Current shown by the ammeter A 


Draw a circuit diagram to show how two 4 V electric lamps can be lit brightly from two 2 V cells.


State three factors on which the heat produced by an electric current depends. How does it depend on these factors? 


State the S.I. unit of current.


Find the potential difference required to pass a current of 0.2 A in a wire of resistance 20Ω


The following circuit diagram shows three resistors 2 Ω, 4 Ω and R Ω connected to a battery of e.m.f 2V and internal resistance 3 Ω. If the main current of 0.25 A flows through the circuit, find:

  1. the p.d. across the 4 Ω resistors,
  2. the p.d. across the internal resistance of the cell,
  3. the p.d. across the R Ω or 2 Ω resistors, and
  4. the value of R.


Name the physical quantity which defines the rate of flow of charge.

Under what circumstances does one get an electric shock from an electrical gadget?

What will be the current drawn by an electric bulb of 40 W when it is connected to a source of 220 V?

What is meant by the term 'electromotive force' of a cell?

In fig. XY is at right angles to the magnetic field. The direction in which XY should be moved to induce an electron flow in the direction Y to X as indicated by the arrow is:


Complete the following:

1 kWh = _________ J


An electric bulb is marked '100 W, 250 V'. What information does this convey?


An electric bulb is rated 250 W, 230 V. 

  1. the energy consumed in one hour, and
  2. the time in which the bulb will consume 1.0 kWh energy when connected to 230 V mains.

A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:

The energy dissipated in the bulb in 10 minutes.


How should the electric lamps in a building be connected?


Three resistances, of which two are equal when connected in series have an effective resistance of 30 ohms. When the three resistances are connected in parallel, the effective resistances is 3 ohms. Find the values of the individual resistances.


For current to flow, one needs art open circuit.


The electron was discovered in 1897 by:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×