Answer: D. Infrared
Infrared is the best way to observe it.
Given Information:
Diameter of solenoid = 5.0 cm
Magnetic field = B = 2.0 T
Rate of change of magnetic field = 3.0 T/s
Required Information:
Electric field strength inside the solenoid at a point on the axis = ?
Answer:
The electric field strength inside the solenoid at a point on the axis is zero.
Explanation:
From the Faraday's Law
E = -r/2 dB/dt
Where dB/dt is the rate of change of magnetic field and r is zero because the distance from the axis is zero.
Therefore, electric field strength inside the solenoid at a point on the axis is 0.
Answer:
(a): When the four resistors are connected in series the equivalent resistor value is Req= 48Ω
(b): when the four resistors are connected in parallel the equivalent resistor value is Req=3Ω
Explanation:
R=R1=R2=R3=R4= 12Ω
(a)
Req= R1+R2+R3+R4
Req= 48 Ω
(b)
Req= (1/12 * 4)⁻¹
Req= 3 Ω
Answer:
Distance in pc= 20parsecs
Distance in zLY= 65.2LY
Distance in AU= 4.1×10^6AU
Explanation:
Using the formular:
d = 1/p
Where d = distance
P= parallax angle in arc of second
d= 1/0.050
d= 20 parsed
Converting to Lighy years,LY :
1 PC = 3.26LY
d= 20pc × (3.26Ly/1pc)
d= 65.2Ly
To convert to AU, 206,265 AU = 1pc
d= 20pc × (2.06×10^5AU/1pc)
d= 4.1×10^6AU
The force of gravity between them increases.
