Two infinite nonconducting sheets of charge are parallel to each other, with sheet a in the x = -2.15 plane and sheet b in the x = +2.15 m plane. find the electric field in the region x < -2.15 m, in the region x > +2.15 m, and between the sheets for the following situations.

(a) when each sheet has a uniform surface charge density equal to +3.25 µc/m2 region (m) electric field (n/c)
x < -2.15

x > +2.15

-2.15 < x < +2.15

(b) when sheet a has a uniform surface charge density equal to +3.25 µc/m2 and sheet b has a uniform surface charge density equal to -3.25 µc/m2

region (m) electric field (n/c)
x < -2.15

x > +2.15

-2.15 < x < +2.15

a) (-367231.63i ,  367231.63i, 0) N/C

b) (0 , 0  , 367231.63i ) N/C

Explanation:

a)

Case x < -2.15

Case x > 2.15

Case -2.15 < x <+2.15

b)

Case x < -2.15

Case x > 2.15

Case -2.15 < x <+2.15

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

conservation of mass

mass before something happens = mass afterwards