Q.

Switching speed of P+ junction depends on                    

A. mobility of minority carriers in p junction
B. life time of minority carriers in p junction
C. mobility of majority carriers in n junction
D. life time of minority carriers in n junction
Answer» D. life time of minority carriers in n junction
Explanation: switching leads to move holes in p region to n region as minority carriers. removal of this accumulation determines switching speed. p+ regards to a diode in which the p type is doped excessively.
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