11 (a)
12
2400W
240V
Heating
element
Figure 11.1
(0
State the power rating of the kettle in kilowatts.
(ii)
How many units of electric energy would the use in 4 hours when connected to a 240v mains?
(iii)the cost of electricity is 30n. how much does it cost
to use the kettle for four (4) hours?
(iv)
Calculate the current flowing through the element of the kettle
when in use.
(v)
Suggest the size of a fuse suitable for the plug of this electric kettle.

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.