the resistance of voltmeter must have very high resistance because
Correct answer: A. it does not draw any current
- A. it does not draw any current
- B. it is very accurate
- C. it does not change circuit current considerably
- D. none of these
Explanation
This is the correct reason. A voltmeter is designed to measure the potential difference (voltage) between two points in a circuit. If the voltmeter itself draws current from the circuit, it will slightly alter the voltage it's trying to measure, leading to inaccurate readings. By having a high resistance, the voltmeter minimizes the amount of current it draws, ensuring minimal interference with the circuit and providing more accurate voltage measurements
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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