English

Fill in the Blank :1 Ma = ............................. A. - Science and Technology 1

Advertisements
Advertisements

Question

Fill in the blank :

1 mA = ............................. A.

Fill in the Blanks

Solution

1 mA = (10-3A) A.

shaalaa.com
  Is there an error in this question or solution?

APPEARS IN

RELATED QUESTIONS

Fill in the blank:

To increase the effective resistance in a circuit the resistors are connected in _____________.


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


 Write down the formula which relates electric charge, time and electric current


Which type of circuit, series or parallel, is preferred while connecting a large number of bulbs:  

(b) for lighting inside the rooms of the hotel?

 


In which of the following cases more electrical energy is consumed per hour?

(i) A current of 1 ampere passed through a resistance of 300 ohms.
(ii) A current of 2 amperes passed through a resistance of 100 ohms. 

 


Name two devices which work on the heating effect of electric current.


In the network shown in the following adjacent Figure, calculate the equivalent resistance between the points.  

  1. A and B
  2. A and C

 


By what name is the unit joule/coulomb called?

A 720 W heater operates from a 220 V line voltage. Calculate:
(a) The electrical energy consumed by the heater in 3 h.
(b) The cost of electrical energy consumption at the rate of 60 paise per kWh.


What should be the current rating of a fuse to be used with an electric appliance of rating 1.5 kW-220 V? How is the fuse connected with the appliance?

Explain briefly how a fuse protects an electric circuit.

Draw a labeled diagram of a three pin socket.

An electric oven is rated as 1.5 kW, 250 V. If it is connected to a 250 V mains, calculate the
(a) Current drawn,
(b) Energy consumed in 20 hours,
(c) Cost of energy consumed in 20 hours at the rate of Re. 1 per unit.


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

If the potential differences between two parts of a thundercloud is 10s V,
what is the amount of energy given up during the passage of 20 coulombs?

(a)2x10-7J

(b)200J

(c)Sx106 j

(d)2x 109J

(e)2x 1010 J


State the conditions for the flow of charge in a circuit from one point to the other.


______ is used to measure the electric current.


Water : pipe :: Electric current : ______.


What are the effects of electric current?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×