- Created by: [email protected]
- Created on: 07-06-18 19:57
Equations to Remember:
V = I x R (Voltage is equal to current times resistance)
Q = I x T (Charge is equal to current times time)
E = Q x V (Power is equal to charge times voltage)
In a parallel circuit...
Current = A1 + A2
Voltage = V1 = V2
The total resistance of two resistors in less than R1 + R2
Specific Heat Capacity
Specific heat capacity is the amount of enegery needed to raise the temperature of 1kg of a substance by 1°C.
Change in thermal energy = Mass x specific heat capacity x temperature change
- A low resolution might lead to error.
- Some heat will be dissipated into the surroundings,
- To prevent this, an insulator can be wrapped around the block.
- There also might be a gap between the immersion heater and the block so the air warms up and acts as an insulator instead.
- To prevent this, the two holes in the block can be filled with water instead as it is a conductor.
1000 mm to a m.
1000 v to a kV.
A million j to a kJ.
A gigajoule is 1 to the power of 9 J.