What do the symbols given below represent in an electric circuit? Write one function of each.
What do the symbols given below represent in an electric circuit? Write one function of each.
Show Hint
Solution and Explanation
The symbol \( + \, - \) represents a simple electric cell or battery in a circuit.
- 2Function:2 The function of a battery is to supply electrical energy to the circuit. It provides the voltage or potential difference that drives the current through the circuit.
(ii) Symbol of a Resistor:
The symbol \( \, \bigtriangleup \, \) represents a resistor in an electric circuit.
- 2Function:2 The function of a resistor is to limit or control the flow of electric current in the circuit. It converts electrical energy into heat energy and helps in regulating the current in various parts of the circuit.
Top Questions on Electric Circuit
Determine the equivalent resistance of the parallel combination of the two resistors (X and Y).
- CBSE Class X - 2025
- Science
- Electric Circuit
Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ωrespectively are joined in series with a battery of 2V.
Find the current drawn from the battery by the series combination of the two resistors (X and Y).- CBSE Class X - 2025
- Science
- Electric Circuit
Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ω respectively are joined in series with a battery of 2V.
In which combination of resistors will the (i) potential difference across X and Y and (ii) current through X and Y, be the same- CBSE Class X - 2025
- Science
- Electric Circuit
Study the circuit shown in which two resistors X and Y of resistances 3 Ω and 6 Ω
respectively are joined in series with a battery of 2V.
Draw a circuit diagram showing the above two resistors X and Y joined in parallel with same battery and same ammeter and voltmeter.- CBSE Class X - 2025
- Science
- Electric Circuit
Assertion (A): In the common domestic circuit, the earth wire is connected to a metallic plate buried deep inside the earth.
Reason (R): Earth wire ensures that any leakage of current to the metallic body of the appliance keeps its potential to that of the earth, so the user may not get a severe electric shock.- CBSE Class X - 2025
- Science
- Electric Circuit
Questions Asked in CBSE X exam
Read the following source and answer the questions that follow:
Loans from Co-operatives
Besides banks, the other major source of cheap credit in rural areas are the co-operative societies. Members of a co-operative pool their resources for co-operation in certain areas. There are several types of co-operatives possible such as farmers co-operatives, weavers co-operatives, industrial workers co-operatives etc. Krishak Co-operative functions in a village not very far away from Sonpur. It has 2300 farmers as members. It accepts deposits from its members. With these deposits as collateral, the co-operative has obtained a large loan from the bank. These funds are used to provide loans to members. Once these loans are repaid, another round of lending can take place. Krishak Co-operative provides loans for the purchase of agricultural equipment, loans for cultivation and agricultural trade, fishery loans, loans for construction of houses and for variety of other expenses.- CBSE Class X - 2025
- Reading Comprehension
Read the following source and answer the questions that follow:
The Need for Political Parties
As we have seen, large societies need representative democracy. As societies became large and complex, they also needed some agency to gather different views on various issues and to present these to the government. They needed some ways, to bring various representatives together so that a responsible government could be formed. They needed a mechanism to support or restrain the government, make policies, justify or oppose them. Political parties fulfil these needs that every representative government has. We can say that parties are a necessary condition for a democracy.- CBSE Class X - 2025
- Reading Comprehension
Read the following source and answer the questions that follow:
The Independence Day Pledge, 26 January 1930
“We believe that it is the inalienable right of the Indian people, as of any other people, to have freedom and to enjoy the fruits of their toil and have the necessities of life, so that they may have full opportunities of growth. We also believe that if any government deprives people of these rights and oppresses them, the people have a further right to alter it or abolish it. The British Government in India has not only deprived the Indian
people of their freedom but based itself on the exploitation of the masses, and has ruined India economically, politically, culturally and spiritually. We believe, therefore, that India must sever the British connection and attain Purna Swaraj or Complete Independence.”- CBSE Class X - 2025
- Reading Comprehension
- Name the place where Mahatma Gandhi led the movement of cotton mill workers.
- CBSE Class X - 2025
- Nationalism in India
- Name an oil field of India located in the Arabian Sea.
- CBSE Class X - 2025
- Mineral and Energy Resources