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If a TV of rating 100 W is operated for ...

If a TV of rating 100 W is operated for 6 hrs per day,find the number of units consumed in a leap year .

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If a TV of rating 100 W is operated for 6 hours per day, find the number of units consumed in a leap year.

If T.V.of rating 10 W is operated for 6 hr per day,find the number of units consumed in a leap year.

A TV of rating 80 W operates 4 hours/day. Find the number of units consumed by the TV in a year.

An electric appliances of rating 800 w is used 4 hours per day in the month of december. Find the number of units consumed.

Solve the following examples/ numerical problems. An electric appliances of rating 300 w is used 5 hours per day in the month of march . Find the number of units consumed.?

A 300 W T.V is operated every day for 6 hr. Find the electrical energy (no.of units)consumed.

An electric bulb of 40 W is used for 50 days at 5 hours per day. Find the units of energy consumed by the bulb and the cost of using electricity at the rate Rs. 3 per unit.

Solve the following examples/ numerical problems. A electric iron rated 750 w is operated for 2 hours/ day. How much energy is consumed by the electric iron for 30 days ?

Solve the following examples: An electric bulb of 40 W is used for 25 days at 10 hours per day. Find the units of energy consumed by the bulb and the cost of using electricity at the rate Rs. 2 per unit.

An electric heater of 1200 W is operated for 3 hrs daily. What will be the electrical consumption expenses for that in the month of June ? (The electric company charges Rs 5 per unit of energy.)

CHETANA PUBLICATION-WORK AND ENERGY-EXERCISE
  1. If a TV of rating 100 W is operated for 6 hrs per day,find the number ...

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  2. Forces are of …..…… types

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  3. Fill in the blanks with appropriate words and writw the completed stat...

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  4. S.I. unit of energy is….

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  5. …………..is the capacity to do work.

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  6. Name the following SI unit of energy

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  7. Name the following The relationship between 1 joule and 1erg .

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  8. State whether the following statements are true or false: Power is a ...

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  9. State whtether the following statement are true or false. Water stored...

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  10. Wind can move the blades of a windmill

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  11. A stretched rubber band when released regainsits original length

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  12. An exploding fire cracker lights as well as makes a sound.

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  13. Solve the following examples: Ravi applied a force of 10 N and moved ...

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  14. 500 kg water isstored in the overhead tank of a 10 m high building.Cal...

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  15. 1 kg mass has a kinetic energy of 2 joule. Calculate its velocity

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  16. Derive an expression for potential energy.

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  17. A 25 W electric bulb is used for 10 hours every day. How much electric...

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  18. If a TV of rating 100 W is operated for 6 hrs per day,find the number ...

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  19. Solve the following examples: If a 1200 W electric iron is used daily...

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  20. Answer the following questions: Derive the formula for the kinetic en...

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  21. State the expression for work done when displacement and force makes a...

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