Physical Science - ConceptEra

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Physical Science

Q- Who was the founder of the ‘Bengal School of Art’?

Chapter: Ideas of History

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Q- State the function of split rings in a dc motor.

Chapter: Current Electricity

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Q- What is the name of the autobiography of Rabindranath Thakur?

Chapter: Ideas of History

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Q- When an electric bulb is connected to a 12V battery, it draws a current of 1A. What is the power of the bulb?

Chapter: Current Electricity

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Q- What do you mean by “magnetic field” ?

Chapter: Current Electricity

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Q- What is an electric motor?

Chapter: Current Electricity

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Q- Which rule is known as Motor rule?

Chapter: Current Electricity

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Q- What will be the change in the motion of a Barlow’s wheel if the direction of the current is reversed ?

Chapter: Current Electricity

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Q- Which type of electricity is used to rotate a Barlow’s wheel?

Chapter: Current Electricity

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Q- What is energy rating mark, provided to almost all household electrical appliances?

Chapter: Current Electricity

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