Gravitational potential energy i think
- The potential difference between two locations in an electric circuit is measured using a voltmeter.
- If the electricity passes through the voltmeter it shows deflection.
<h3>What is the purpose of a voltmeter?</h3>
- A voltage meter, usually referred to as a voltmeter, is a device that measures the voltage, or potential difference, between two points in an electrical or electronic circuit.
- volts is the unit of voltmeter(volts, millivolts, kilovolts)
<h3>What is the explanation for the link between current and voltage?</h3>
- Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant.
<h3>What is ohm's law in circuit?</h3>
- V = IR, where V is voltage, I is current, and R is resistance, is known as Ohm's Law.
- If you know the voltage of the battery in the circuit and how much resistance is in the circuit, you may use Ohm's Law to identify properties of a circuit, such as how much current is flowing through it.
To learn more about current and voltage visit:
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1 Amp = 1 Coulomb/sec
1 Coulomb/sec = 6.25*10^18 electrons/sec
Therefore,
5.0 A = 5 C/s = 5*6.25*10^18 = 3.125*10^19 e/s
In 10 second, number of electrons are calculated as;
Number of electrons through the device = 3.125*10^19*10 = 3.125*10^20 electrons
Answer:
The velocity of the ship relative to the earth V = 9.05 ![\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%7D)
Explanation:
The local ocean current is = 1.52 m/s
Direction
= 40°
Velocity component in X - direction
= 1.52
°
= 1.164 ![\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%7D)
Velocity component in Y - direction
= 8 + 1.52
°
= 8.97 ![\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%7D)
The velocity of the ship relative to the earth
![V = \sqrt{V_{x}^{2} + V_{y} ^{2} }](https://tex.z-dn.net/?f=V%20%3D%20%5Csqrt%7BV_%7Bx%7D%5E%7B2%7D%20%2B%20V_%7By%7D%20%5E%7B2%7D%20%20%7D)
Put the values of
and
we get,
⇒ ![V = \sqrt{1.164^{2} + 8.97 ^{2} }](https://tex.z-dn.net/?f=V%20%3D%20%5Csqrt%7B1.164%5E%7B2%7D%20%2B%208.97%20%5E%7B2%7D%20%20%7D)
⇒ V = 9.05 ![\frac{m}{s}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Bs%7D)
This is the velocity of the ship relative to the earth.