Question

訪客

請問第4題要怎麼算?

人         時           人

(”) 4. Asquare coil of side 8 cm has 180 turns and rotates in a uniform field of
magnitude 0.08 T 了fthe peak emfis 12 V what is the angular velocity of the coil?
(A) 100 rod/s 。(B) 110 rqd/s       (c) 120 rod/s      (D) 130 yad/s

(”) 5. A parallel plate capacitor has circular plates of radius 2 cm separated by 3 mm. 耳
the potential difference between the plates changes at 5x 10+ V/s, what is the