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Question
_______ is used to measure electric current.
Solution
Ammeter is used to measure electric current.
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RELATED QUESTIONS
The solid angle is measured in _______.
The coldness or hotness of a substance is expressed by _______.
One mole of a substance contains _______ atoms or molecules.
Amount of substance gives the number of particles present in a substance.
Match the following.
| Temperature | Closeness to the actual value |
| Plane angle | Measure of hotness or coldness |
| Solid angle | Closeness to two or more measurements |
| Accuracy | Angle formed by the intersection of three or more planes |
| Precision | Angle formed by the intersection of two planes |
Consider the statement given below and choose the correct option
Assertion: Electric current, amount of substance, luminous intensity are the fundamental physical quantities.
Reason: They are independent of each other.
Consider the statement given below and choose the correct option.
Assertion: Radian is the unit of solid angle.
Reason: One radian is the angle subtended at the center of a circle by an arc of length equal to its radius.
Define – mole.
How many base quantities are there?
Mention the SI unit of luminous flux.
