Electroscope is a device used to cgange a body by induction.

Identify the correct statements from the below about "Stethoscope". (i) Stethoscope helps to find the normal and abnormal heart beat sounds. (ii) It helps to diagnose kidney diseases. (iii) Stethoscopes are used to read blood glucose level. (iv) Stethoscope is a medical device used to hear the internal sounds of the human body.

An electroscope has been charged by induction with the help of charged glassrod. The charge on the electroscope is

Name the device used to generate electricity.

Find whether the following sentences are true or false. If false correct the statement. Speedometer is a device used for indicating distance travelled by an automobile.

Find whether the following sentences are true or false. If false correct the statement. An electronic balance is a device used to find accurate mass.

Voltmeter is a device used to measure electric current.

A . . . . .. . . . . . Is the display device used to give an output in the form of . . . . . . . . . .