Physics Past Questions and Answers

Which of the following actions is necessary in order to tune a string to produce a note of an octave higher than its fundamental?

The acceleration due o gravity may be defined as the force

An electron of mass m and charge \(\Box\) enters a uniform electric field between two metal plates P and q separated by a distance d. P is maintained at a potential V while Q is earthed. Determine an expression for the magnitude of the acceleration of electron through the field

Which of the following factors does not affect the capacitance of a parallel plate capacitor?

The equivalent capacitance of a 3\(\mu F\) capacitor and a 6\(\mu F\) capacitor connected in parallel is