Why do we need a ULN2803 in driving a relay?
A. for switching a motor
B. for increasing the current limit in the relays
C. for increasing the power
D. for decreasing the current limit in the relays
Answer:A
Why do we need a ULN2803 in driving a relay?
A. for switching a motor B. for increasing the current limit in the relays C. for increasing the power D. for decreasing the current limit in the relays
Explanation: We need a ULN2803 for driving a relay because more current is generally required for driving a relay that is generally not provided by a micro controller, so we need a ULN2803 to increase the current limit.