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प्रश्न
What is electric current?
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उत्तर
An electric current is measured by the amount of electric charge moving per unit time at any point in the circuit. The conventional symbol for current is I.
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संबंधित प्रश्न
Luminous intensity is the intensity of ______
One mole of a substance contains _______ atoms or molecules.
Angle formed at the top of a cone is an example for ‘plane angle’
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: 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.
Give the name of the instrument used for the measurement of temperature.
Name the three scales of temperature.
What do you mean by luminous intensity?
Temperature is a measure of total ______ of the particles in a system.
Assertion: Radian is the angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle.
Reason: 1 radian = `180/π`
