The motor effect is the term used when a current-carrying wire in the presence of a magnetic field experiences a force.
        
             
        
        
        
It be desirable to use an energy resource that does not produce greenhouse gases because it contribute to climate change
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Option C
<u>Explanation:</u>
Greenhouse gases are the toxic gases that contribute to the "greenhouse effect". Greenhouse gases have the ability to absorb and emit some of the outgoing energy that is radiated by the Earth's surface, eventually causing the heat to get accumulated in the "lower atmosphere". It is always beneficial to use Renewable Energy sources such as Wind, solar and water which gives no harm to the environment and climate with no greenhouse gas emissions.  
<u>For example:</u> If we have to generate electricity, there will be no greenhouse gas production at the beginning and a very less amount of production at the entire life cycle.
 
        
                    
             
        
        
        
Answer:
The value is  
Explanation:
From the question we are told that 
    The radius of the inner conductor  is  
     The radius of the outer conductor is  
     The potential at the outer conductor is  
Generally the capacitance per length of the capacitor like set up of the two conductors is 
       ![C= \frac{2 * \pi * \epsilon_o }{ ln [\frac{r_2}{r_1} ]}](https://tex.z-dn.net/?f=C%3D%20%5Cfrac%7B2%20%2A%20%5Cpi%20%2A%20%5Cepsilon_o%20%7D%7B%20ln%20%5B%5Cfrac%7Br_2%7D%7Br_1%7D%20%5D%7D)
Here  is the permitivity of free space with value
 is the permitivity of free space with value  
=>   ![C= \frac{2 *  3.142  * 8.85*10^{-12}  }{ ln [\frac{0.003}{0.001} ]}](https://tex.z-dn.net/?f=C%3D%20%5Cfrac%7B2%20%2A%20%203.142%20%20%2A%208.85%2A10%5E%7B-12%7D%20%20%7D%7B%20ln%20%5B%5Cfrac%7B0.003%7D%7B0.001%7D%20%5D%7D)
=>   
Generally given that the potential  of the outer conductor with respect to the inner conductor is positive it then mean that the outer conductor is positively charge 
 Generally the line  charge density of the outer  conductor is mathematically represented as 
       
=>   
=>   
Generally the surface charge density is mathematically represented as 
          here
    here 
=>    
=>    
 
 
        
             
        
        
        
Answer:
The direction of the momentum of the large ball after the collision with respect to east is 146.58°.
Explanation:
Given that,
Mass of large ball = 3.0 kg 
Mass of steel ball = 1.0 kg
Velocity = 3.0 kg
After collision,
Velocity = 2.0 m/s
Using conservation of momentum




The direction of the momentum



The direction of the momentum with respect to east

Hence, The direction of the momentum of the large ball after the collision with respect to east is 146.58°.