Physics: Magnetism And Electromagnetism: Units
Akopọ
The magnetism and electromagnetism section draws on just three units, but each appears in key equations linking current, voltage and power in electromagnetic devices.
This reference covers the three SI units for this section: ampere, volt and watt, along with the contexts in which they appear in magnetism and electromagnetism questions.
Awọn Afojusun
- Use the following units: ampere (A), volt (V) and watt (W)
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- The unit of current is: A) Volt B) Watt C) Ampere D) Ohm Answer: C
- A device draws 0.5 A from a 230 V supply. Its power is: A) 460 W B) 115 W C) 230.5 W D) 0.002 W Answer: B
- Induced voltage in a generator is measured in: A) Amperes B) Volts C) Watts D) Ohms Answer: B
- What is 200 mA in amperes? A) 20 A B) 2 A C) 0.2 A D) 0.02 A Answer: C
- Power is calculated using: A) P = V/I B) P = IR C) P = IV D) P = I/V Answer: C
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
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