1) The unit of voltage is . 2) Voltmeters are always connected in .
3) Voltage supplies to a circuit.
4) If there is more than one component in a series circuit the voltage is
5) If the components are in parallel they have the voltage
6) Amps is a measurement of
7) You always connect an ammeter in
8) The current in a series circuit is always the
9) The current in a parallel circuit is
10) redraw the following and fill in the labels:

11)

12)
Calculate the current from in the circuit below:

13)

14?

air quality

poor drinking water

and heavy polution

can lead to poor health

the temperature of the gas, in k, not celsius.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.