When a current is established in a closed conducting loop , we use ammeter. Due to this resultant potential developed detected by voltmeter.
- When current flows through loop , it gets conducted.
- Due to this Electric field is generated . This happens due to induced magnetic field.
- The free electrons were at rest until current is there , still ammeter detects some deflection.
- This deflection is due to zero current.
- Due to magnetic field , current in coil changes.
- Mathematically,
- The presence of conducting loop is not necessary for having electric field.
i=0.63 io
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Explanation:
thermodynamics is the study of heat.
Answer:
oh I'm so sorry I can't answer your question it has been a long time since I learned that. so I totally forgot how to do this. sorry!
Answer:
4.91 K
Explanation:
From the question,
q = cm(Δt)................ Equation 1
Where q = heat, c = specific heat capacity of copper, m = mass of copper, Δt = temperature change.
make Δt the subject of the equation
Δt = q/cm.................. Equation 2
Given: q = 560 J, m = 300 g = 0.3 kg, c = 380 J/kg.K
Substitute these values into equation 2
Δt = 560(0.3×380)
Δt = 560/114
Δt = 4.91 K
Convert km to meters:
1km = 1000 m
1.5 km x 1000 = 1500 m
1500m / 4.8 m/s = 312.5 seconds
312.5 seconds / 60 seconds per minute =5.2 minutes = 5 minutes 12.5 seconds