Engineering Board Exam Reviewer · RL Circuits · medium
In the series RL circuit shown, a 375 V (rms) source with =1000 rad/s is connected to R=240, and L=70 mH. Find the current drawn from the source.
- 1.21 A
- 5.36 A
- 3 A
- 1.5 A
Answer
D. 1.5 A
Solution
XL= L=(1000)(70 mH)=70, . |Z|=sqrt(R2+XL2)=sqrt((240, )2+(70, )2)=250, . I=V/|Z|= 375 V250, =1.5 A.
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