हिंदी

Explain Why, the Current that Makes the Heater Element Very Hot, Only Slightly Warms the Connecting Wires Leading to the Heater.

Advertisements
Advertisements

प्रश्न

Explain why, the current that makes the heater element very hot, only slightly warms the connecting wires leading to the heater.

Advertisements

उत्तर

The current that makes the heater element very hot, only slightly warms the connecting wires leading to the heater because the connecting wires have a low resistance. So they do not get hot. But the heater element has a very high resistance and so it gets very hot.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Electricity - Exercise 8

APPEARS IN

लखमीर सिंग Physics [English] Class 10
अध्याय 4 Electricity
Exercise 8 | Q 15

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potential difference of 50 V.


The safety device based on the heating effect of electric current is called a ______.


An electric fuse works on the:
(a) chemical effect of current
(b) magnetic effect of current
(c) lighting effect of current
(d) heating effect of current


The heat produced in a wire of resistance 'x' when a current 'y' flows through it in time 'z' is given by:

(a) x2 × y × z
(bx × z × y2
(cy × z2 × x
(dy × z × 


Two exactly similar heating resistances are connected (i) in series, and (ii) in parallel, in two different circuits, one by one. If the same current is passed through both the combinations, is more heat obtained per minute when they are connected in series or when they are connected in parallel? Give reason for your answer.


Identify the figure and give its use.


Statement 1 : Electric current ( flow of electrons ) creates heat in the resistor.
Statement 2 : Heat in the resistor is created according to the rule of energy conservation.
Explain Statement 1 with the help of Statement 2.


In an electric bulb, coil of _______ metal is used.


What is used to turn off the sudden increase in current in the electrical circuit of the house nowadays?


Write two devices based on the heating effect of electric current.


An electric iron consumes energy at the rate of 420 W when heating is at the maximum rate and 180 W when heating is at the minimum rate. The applied voltage is 220 V. What is the current in each case?


A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly:


The heating element of an electric iron is made up of:


An electric component used as a safety device is electric circuit is ______.


Unscramble the following words:

SFEU


What are the uses of electromagnets?


______ wire is used in the filament of the bulbs.


What is a trip switch?


The following is not a safety device.


The graph of voltage vs current for four different materials is shown below.

Which of these four materials would be used for making filament of bulb?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×