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Question
A ______ can be detected with an electroscope.
Options
always repulsion
always attraction
displacement of negative charge
displacement of positive charge
atom
molecule
steel
copper
plastic
inflated balloon
charged object
gold
Solution
A charged object can be detected with an electroscope.
Explanation:
This instrument is used to detect electrical charge (positive or negative). When an object is electrically charged, its reaction in the electroscope indicates whether the object is charged or not. The electroscope has a filament or blades, which can move closer or farther from each other when charged, thus indicating the charge.
RELATED QUESTIONS
______ does not get electrically charged easily by rubbing.
There is ______ when opposite electric charge come near each other.
Rubbing of comb with hair
Electric field lines ______ from positive charge and ______ in negative charge.
Match the following.
| 1. | Electric charge | a. | ohm |
| 2. | Potential difference | b. | ampere |
| 3. | Electric field | c. | coulomb |
| 4. | Resistance | d. | newton per coulomb |
| 5. | Electric current | e. | volt |
On what factors does the electrostatic force between two charges depend?
What are electric lines of force?
What are positive and negative ions?
What is the ground connection?
Electric charge is ______ in nature.
