Answer:
<h2>Case i) ifExplanation:
As we know that the impedance of the circuit is given as
when we join another identical capacitor in parallel with previous capacitor in the circuit then we will have for parallel combination
so it is
now we have
Case i) if
So initially if the circuit is inductive in nature then its net impedance will decrease after this
Case ii) if
So initially if the circuit is capacitive in nature then its net impedance will increase after this
Answer:
Explanation:
Electron's kinetic energy = 2 eV
= 2 x 1.6 x 10⁻¹⁹ J
1/2 m v² = 3.2 x 10⁻¹⁹
1/2 x 9.1 x 10⁻³¹ x v² = 3.2 x 10⁻¹⁹
v² = .703 x 10¹²
v = .8385 x 10⁶ m/s
Electrons revolve in a circular orbit when forced to travel in a magnetic field whose radius can be expressed as follows
r = mv / Bq
where m , v and q are mass , velocity and charge of electron .
here given magnetic field B = 90 mT
= 90 x 10⁻³ T
Putting these values in the expression above
r = mv / Bq
=
= .052 mm.