Search & Filtering
How many S.D are indicated by each of these approximate values?
a) 32000.tons
b) 1.20×10(--5)ms
A platform diver has a kinetic energy of 12,000 n x m prior to landing in the water bucket. If her mass is 40 kg, what is her final velocity before splash?
A hiker travels 4,5 km in a direction 12 degrees south of west and then 7,2 km in a direction 23 degrees west of south.
Determine the hiker’s overall displacement.
Draw each of the hiker’s individual displacement vectors on the same set of Cartesian axes, so that their initial points coincide at
the origin:
:Determine the components of each of these vectors; then use them to find the resultant/overall displacement:
a 200iC charge flows through conductor. if the p.d between its ends is 40mv, find the work done
A current carrying wire(wire-1) with i1=10 Amperes is placed at the origin on the Y-Z plane. Another current carrying wire(wire-2) with i2=12Amperes is placed l=8m distance apart on the Y-axis. The point P2 is l1=6m from the wire-1. P1(0,6,−6), P2(0,6,0) and the point P3(0,6,7) are on the same line. The direction of the current is given in the figure.
Step 1: Consider a wire-1 only.
a) i. Calculate magnetic field at P1
ii. Calculate the magnetic field at P2
Step 2: Consider both wires
b) i. Now what is the net magnetic field at pointP2?
ii. What is the Magnetic field at point P3?
Explain snell law
What is momentum
A single current-carrying circular loop of radius R=3.2cm is placed next to a long straight wire as shown in Figure. A current i1=−4.3A is passing through the wire towards right. At a certain moment an electron is moving at a velocity, v =440.0j m/s toward the centre of the circular wire. At the instant shown in figure, the electron’s distance from the wire is d=5.5cm. The distance between the circular loop and the wire is R/2.
a) Compute the magnitude of the magnetic field at the centre c due to the current passing through the straight wire
b) What is the magnitude of magnetic field at the centre c due to the motion of the electron
c) In unit vector notation, find the magnetic force on the electron due to the current passing through the straight wire
d) Calculate the magnitude and direction of the current to the circular wire to produce zero magnetic field at its centre c. Consider counter-clockwise circulation of current as positive
How large a force parallel to a 300 incline is needed to give a 5.0 kg an acceleration 0.20 m/s2 up the incline a) if friction is negligible? b) if the coefficient is 0.30?
1. Calculate the magnitude and direction of the electric field 0.50m from a +8.23^-9C point charge.
2. An electric field dipole consists of two equal but unlike charges separated by a distance. Two point charges, q1=+2.3×10^-6C and q2=3.4×10^-6, are separated by 8.9×10^-2m, forming an electric dipole. Find the electric field halfway between the dipole.
