No force works on the conductor carrying electric current when it is kept ………………….
A) away from magnetic field
B) in the magnetic field
C) perpendicular to magnetic field
D) parallel to magnetic field
1 Answers
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Shiva can type `x` words per hour while Sreevias can type `y` words per hour. Shiva works for 5 hours per day and Sreenvias works for 7 hours per day.
Correct Answer - `5x + 7y ge 700`
2 Answers 1 views
Machine A can produce 6 items per hour and machine B can produce 11 items per hours. If machine A works for x hours and B works for y hours in a day a
Correct Answer - `6x + 11y le 200`
2 Answers 1 views
An electric current in a metallic conductor such as a wire is due to the flow of electrons,
i. The valence electrons become de-localized when a large number of atoms come together in a metal. ii. These electrons become conduction electrons or free electrons constituting an electric current when...
2 Answers 2 views
The potential difference between two points separated by a distance l in a conductor wire by the electric force on a free charge ‘q’ is …………………….
Correct option is C) V = \(\frac{F.1}{q}\)
2 Answers 1 views
The potential difference between the ends of a conductor is directly proportional to the electric current passing through it at constant temperature.
A) Ohm’s law
2 Answers 1 views
The shape of the magnetic field lines around a straight current carrying conductor are …………….
B) concentric circles
2 Answers 1 views
The equation for magnetic force on a current carrying wire of length T/ which makes an angle ‘θ’ with the magnetic field is ……………….
B) F = BIL sinθ
2 Answers 1 views
Pressure = ………… A) Force B) Force x area C) Area / force D) Force / area
D) Force / area
2 Answers 1 views
State the rule to determine the direction of (1) magnetic field produced around state conductor carrying current.
(i) Right hand thumb rule is used to determine the direction of magnetic field produced around a straight current-carrying conductor. The thumb rule states that, if the current carrying conductor is held in...
2 Answers 3 views
A charged particle can be deflected by electric and magnetic filed both The electric force`oversetrarrF_(e) =qoversetrarrE` and magnetic force `overse
Correct Answer - `B`
2 Answers 1 views