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Sanchit Mehta
Subject: Physics
, asked 18 hours, 19 minutes ago
One end of a glass capillary tube with a radius
r
= 0.05 cm is immersed into water to a depth of
h
= 2 cm. What pressure is required to blow an air bubble out of the lower end of the tube? (
T
= 7 × 10
^{–2}
N/m and ρ = 10
^{3}
kg/m
^{3}
)
Options:
480 N/m
^{2}
680 N/m
^{2}
120 N/m
^{2}
820 N/m
^{2 pls solve}
Answer
1
Smriti Sinha
Subject: Physics
, asked 18 hours, 51 minutes ago
An electron enters an electric field of intensity, E̅ = (3î + 6ĵ + 2k̂) Vm
^{ 1 }
and magnetic field of induction B̅ = (2î + 3ĵ) T with a velocity V̅ = (2î + 3ĵ) ms
^{ 1 }
. The magnitude of force acting on the electron is :
(a) 2.02X10
^{18}
N (b) 5.16X10
^{ 16 }
N (c) 3.72X10
^{17}
N (d) 1.12X10
^{ 18}
N
Answer
1
Kushal Desai
Subject: Physics
, asked 18 hours, 56 minutes ago
plzz answer the fol
Answer
1
Kushal Desai
Subject: Physics
, asked 18 hours, 58 minutes ago
plzzz answer the
Answer
1
Kushal Desai
Subject: Physics
, asked 18 hours, 59 minutes ago
plzz answer the
Answer
1
Smriti Sinha
Subject: Physics
, asked 19 hours, 43 minutes ago
A solid sphere and a ring (of the same mass and the radius) are rotating freely about their own tangential axis keeping the same angular momenta. If K
_{s}
and K
_{R}
be the kinetic energies of the solid sphere and the ring respectively, then :
(a) K
_{S}
= K
_{R }
(b) K
_{S }
> K
_{R }
(c) K
_{S}
< K
_{R }
(d) K
_{S}
= 2 K
_{R}
Answer
1
Akshitha Rao
Subject: Physics
, asked 20 hours, 35 minutes ago
In the
2
^{nd}
step how did
r
_{2 }
 r
_{1}

get
cubed instead of getting squared
?
Answer
1
Suchandra Sen
Subject: Physics
, asked 20 hours, 46 minutes ago
How come we can determine the glass rod will have positive charge and the plastic one will have negative charge and not vice versa? Is there any reason to determine it or is it just like that?
Answer
1
Sanskriti Gupta
Subject: Physics
, asked 21 hours, 54 minutes ago
Please solve this question urgently
Please
Answer
1
Kshitij Rai
Subject: Physics
, asked 22 hours, 31 minutes ago
The number of turns in primary and secondary of a transformer are 5 and 10 and mutual induction of transformer is 25H now the number of turns in primary and secondary are 10 and 5 the new mutual induction will be.
a)6.25H
b)12.5H
c)25H
d)50H
Answer
2
Sarthak Gaur
Subject: Physics
, asked 1 day ago
Plz give the answer with explaination
Answer
1
Smriti Sinha
Subject: Physics
, asked 1 day ago
A wheel with 10 spokes each of length L m is rotated with a uniform angular velocity ω in a plane normal to the magnetic field B. The emf induced between the axle and the rim of the wheel is :
(a) 5ωBL (b) ½ωBL
^{2}
(c) ωBL
^{2 }
(d) 10 ωBL
Answer
1
Nihala
Subject: Physics
, asked 1 day, 1 hour ago
Two charges 0.2 uuC and 0.2uuC are placed 10^6 cm apart .calculate electric field at an axial point at a distance of 10cm from their middle ponit
Answer
2
Nihala
Subject: Physics
, asked 1 day, 1 hour ago
Two charges +30u C and 30uC are placed 1cm apart .claculate electric field at a point on the axial line at a distance of 20cm from the centre of dipole
Answer
2
Mrinal
Subject: Physics
, asked 1 day, 6 hours ago
Answer this question plzz maam
Answer
1
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What are you looking for?
(a) 2.02X10 ^{18} N (b) 5.16X10^{ 16 }N (c) 3.72X10 ^{17} N (d) 1.12X10^{ 18} N
(a) K_{S} = K_{R } (b) K_{S }> K_{R } (c) K_{S} < K_{R } (d) K_{S} = 2 K_{R}
Please
a)6.25H
b)12.5H
c)25H
d)50H
(a) 5ωBL (b) ½ωBL^{2} (c) ωBL^{2 } (d) 10 ωBL