A circular coil of 20 cm 2 area is made of 100 turns as shown is figure- In 0-2 sec of time- B reverses its direction of the field- How much charge flows through wire- if R -6 - - B -4-8 TeskB- 0-32 C C- 0-28 CD- 0-64 C

The correct option is B 0.32 CEMF = N ( Δϕ/Δ t ) i = EMF/R = N/R ( Δϕ/Δ t ) Charge flown through R nbsp; = Δ q = i Δ t = N Δϕ/R = 100 × (9.6) × 20 × 10/R ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Using Lenz's Law

A circular co...

Question

A circular coil of $20 c m^{2}$ area is made of 100 turns as shown is figure. In 0.2 sec of time, $\to B$ reverses its direction of the field. How much charge flows through wire, if R = 6 $Ω$ ?

0.32 C

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

0.64 C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.28 C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.16 C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 0.32 C
$E M F = N (\frac{Δ ϕ}{Δ t}) i = \frac{E M F}{R} = \frac{N}{R} (\frac{Δ ϕ}{Δ t})$
Charge flown through $R = Δ q = i Δ t$
$= \frac{N Δ ϕ}{R} = \frac{100 \times (9.6) \times 20 \times 10}{R}$
$= \frac{100 \times 2 \times 4.8 \times 20 \times 10^{- 4}}{R}$
$= \frac{19.2 \times 10^{- 1}}{6} = 0.32 C$

Suggest Corrections

Similar questions

Q. A circular coil of

20 {cm}^{2}

area is made of

100

turns as shown in figure. In

0.2 s

of time,

\to B

reverses its direction of the field. How much charge flows through wire if resistance

R

6 Ω

Q. A flat coil, C, of n turns, area A and resisitance R is placed in a uniform magnetic field of magnitude B. The plane of the coil is initially perpendicular to B. If the coil is rotated by an angle about the axis XY, charge of amount Q flows through it.

Q. A flat circular coil of

n

turns, area

A

and resistance

R

is placed in a uniform magnetic field

B

. The plane of coil is initially perpendicular to

B

. When the coil is rotated through an angle of

180^{o}

about one of its diameter, a charge

Q_{1}

flows through the coil. When the same coil after being brought to its initial position, is rotated through an angle of

360^{o}

about the same axis a charge

Q_{2}

flows through it. Then

Q_{2} / Q_{1}

Q. If a coil of

50

turns area

5.0 c m^{2}

is suddenly removed from magnetic field. It is observed that charge of

5 \times 10^{- 4} C

flows into the coil. If the resistance of the coil is

100 Ω

, the magnetic flux density in

W b / m^{2}

Q. A flip coil consists of

N

turns of circular coils which lie in a uniform magnetic field. Plane of the coils is perpendicular to the magnetic field as shown in figure. The coil is connected to a current integrator which measures the total charge passing through it. The coil is turned through

180^{o}

about the diameter. The charge passing through the coil is

Join BYJU'S Learning Program

A circular coil of 20cm2 area is made of 100 turns as shown is figure. In 0.2 sec of time, →B reverses its direction of the field. How much charge flows through wire, if R = 6 Ω?

The correct option is A 0.32 CEMF=N(ΔϕΔt)i=EMFR=NR(ΔϕΔt) Charge flown through R=Δq=iΔt =NΔϕR=100×(9.6)×20×10R =100×2×4.8×20×10−4R =19.2×10−16=0.32 C

A circular coil of $20 c m^{2}$ area is made of 100 turns as shown is figure. In 0.2 sec of time, $\to B$ reverses its direction of the field. How much charge flows through wire, if R = 6 $Ω$ ?