Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Shane Macguire Grade: upto college level
`        Find the time required for a 50 Hz alternating current to change its value form zero to the rms value.`
3 years ago

396 Points
```										Sol. f = 50 Hz
I = I base 0 Sin Wt
Peak value I = I base 0/√2
I base 0/√2 = I base 0 Sin Wt
⇒ I base 0/√2 Sin Wt = Sin π/4
⇒ π/4 = Wt. or, t = π/400 = π/4 * 2πf = 1/8f = 1/8 * 50 = 0.0025 s = 2.5 ms

```
3 years ago
Arun Kumar
IIT Delhi
256 Points
```										Hello$\\v(t)=vsin(2\pi 50t) \\v_{rms}={ v \over \sqrt2} \\=>so v(t)=0 at t=0 \\=>v(t)={v \over \sqrt2} \\=>2\pi 50t={\pi \over 4} \\=>t={1 \over 100}$Thanks & RegardsArun KumarBtech, IIT DelhiAskiitians Faculty
```
3 years ago
Think You Can Provide A Better Answer ?

## Other Related Questions on Electric Current

View all Questions »
• Complete Physics Course - Class 12
• OFFERED PRICE: Rs. 2,756
• View Details
• Complete Physics Course - Class 11
• OFFERED PRICE: Rs. 2,968
• View Details