Question

1 points sove kreme QUESTION 9 The current flowing in the secondary coll of a step down transformer is smaller than the current flowing in the primary coil True False QUESTION 10 1 points save womer A coil of wirelies on a horizontal table in the presence of a uniform magnetic field that points vertically upward and whose magnitude is increasing with time. When viewed from above, a clockwise current is induced in the coil True False QUESTION 11 1 points Save Aswer An AC source of fixed mms voltage is connected to a capacitor. When the frequency of the source decreases, the capacitive reactance increases True False

Answer 1

Solu & According to Question 9 for a step down transformer. No. of turns in secondary Coil is less than No, of turns in Primary Coil. The output Voltage is less than input Voltage, il N₂ LN & ELE, If we consider there is no loss of energy then Input Power & output Power il E, I = E2 I2 EL = I2 > E2 7 - . As E Therefore so Auswer of cuestion is False The magnetic field is acting vertically upward & Coil is placed on a horizontal table. The magnitude of magnitude increase with time. This will change flex linked wirth Wil & Produled Induced current in Coil. According to lenz's low the direc" of interced Current always in such a way that it opposses the cause which Produce it

O There fore induced magnetic field is acting in downward direction, using Right hand Thumb ruke we can find the direction of current. Therefore direction of Induled current is clockwise when viewed from above Therefore, Answer of Question is "True" e) An Ac source of freed ams Voltage is Connected to a Capacitor. The Capacitive Reactance is - Xe = 1 Xe & - If frequency is decrease the capacitive Reactance Increases. Therefore option "True is auserer
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