The charge on the moving particle
        
             
        
        
        
Answer:
2.92 m
Explanation:
As we know, frequency × Wavelength = Speed of light
so here frequency of 102.7 MHz can be written as 102.7× 10⁶ Hz..
So Lambda (wavelength) = 3×10⁸/ 102.7 × 10⁶ which gives 2.92 metres or 2.92 × 10¹⁰ Å
 
        
             
        
        
        
Answer:
Explanation:
Magnitude of force per unit length of wire on each of wires 
= μ₀ x 2 i₁ x i₂ / 4π r    where i₁ and i₂ are current in the two wires , r is distance between the two and  μ₀ is permeability .
Putting the values , 
force per unit length = 10⁻⁷ x 2 x i x 2i / ( 6 x 10⁻³ )
= .67 i² x 10⁻⁴ 
force on 3 m length 
= 3 x .67 x 10⁻⁴ i²
Given , 
8 x 10⁻⁶ = 3 x .67 x 10⁻⁴ i²
i²  = 3.98 x 10⁻²
i = 1.995 x 10⁻¹
= .1995 
=  0.2 A approx . 
2 i = .4 A Ans . 
 
        
             
        
        
        
Answer:
Explanation:
Given 
Mass of monkey A=20lb
Mass of monkey B=26lb
Mass of monkey C=25lb
acceleration of monkey A=
acceleration of monkey B=0
acceleration of monkey C=
Force Due to monkey A
Force Due to monkey A
Force Due to monkey A
In addition to it  Weights of monkeys will be acting downwards therefore net Downwards force is balanced by tension
T=