Question

1. Use an NPN transistor (2N3904), a 5V relay (provided by the TA, from the parts counter), an LED, and the resistors indicated to build the following circuit for low side BJT switching. Be careful not to force the relay into the breadboard, or else the pins may bend or break. Look up the datasheet of the relay to find the pinout. 5V 5V $V_{rel}$ $V_{in}$ 150ohms 1.8kohms LED

          1. Use an NPN transistor (2N3904), a 5V relay (provided by the TA, from the parts counter), an LED, and the resistors indicated to build the following circuit for low side BJT switching. Be careful not to force the relay into the breadboard, or else the pins may bend or break. Look up the datasheet of the relay to find the pinout.
5V
5V
$V_{rel}$
$V_{in}$
150ohms
1.8kohms
LED

1. Use an NPN transistor (2N3904), a 5V relay (provided by the TA, from the parts counter), an LED, and the resistors indicated to build the following circuit for low side BJT switching. Be careful not to force the relay into the breadboard, or else the pins may bend or break. Look up the datasheet of the relay to find the pinout.
5V
5V
Vrel
Vin
150ohms
1.8kohms
LED

Added by Jose C.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Manish Jain

01/12/2022

Step 1

8k ohm resistor, and a power supply. Show more…

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In the following circuit, what is the base current when the load is powered? 1. Use an NPN transistor (2N3904), a 5V relay (provided by the TA, from the parts counter), an LED, and the resistors indicated to build the following circuit for low side BJT switching. Be careful not to force the relay into the breadboard, or else the pins may bend or break. Look up the datasheet of the relay to find the pinout. 5V 5V Vrel Vin 150 ohms 1.8k ohms LED