Which of the following statements is/are correct? Statements: I) A current carrying conductor acts like a magnet. II) Moving electrons perpendicular to the magnetic field do not experience any force.
Statement I only
The correct answer is option 2 I.e. Statement I only.
The correct statement is:
I) A current-carrying conductor acts like a magnet.
Statement I is correct: When electric current flows through a conductor, it generates a magnetic field around it — this is the principle behind electromagnets.
Statement II is incorrect: Moving electrons perpendicular to a magnetic field do experience a force (called the Lorentz force). The force is maximum when the motion is perpendicular to the field.
Which of the following household items does NOT use the heating effect of current?
The magnetic field produced by a current-carrying wire at a given point depends on which of the following factors?
If the resistance of a conductor is increased to three times, then the current will be: (voltage V remains constant)
Which physical quantity represents the rate at which electric energy is dissipated or consumed in an electric circuit?
In Fleming's left hand rule, which physical quantity is represented by the middle finger?
The equivalent resistance of the series combination of R ohm and 5 ohm is 7 ohm. Here, R is _______.
The work done in moving a charge +Q across two points having a potential difference K is:
Which of the folloewing devices does NOT make use of current carrying conductor in a magnetic field ?
Which of the following expressions is NOT correct for electric power?
Which of the following is NOT a valid representation of electrical power P in a circuit? (The current, potential difference and resistance are written symbolically as I, V and R, respectively.)
'Net metering' is sometimes seen in the news in the context of promoting the
Which of the following household items does NOT use the heating effect of current?
The magnetic field produced by a current-carrying wire at a given point depends on which of the following factors?
If the resistance of a conductor is increased to three times, then the current will be: (voltage V remains constant)